diff --git a/classes/Visualizer/Gutenberg/Block.php b/classes/Visualizer/Gutenberg/Block.php
index 72e129b04..38b479ee9 100644
--- a/classes/Visualizer/Gutenberg/Block.php
+++ b/classes/Visualizer/Gutenberg/Block.php
@@ -186,8 +186,7 @@ public function gutenberg_block_callback( $atts ) {
 			return '';
 		}
 
-		// phpcs:ignore WordPress.PHP.StrictComparisons.LooseComparison
-		if ( $atts['lazy'] == -1 || $atts['lazy'] == false ) {
+		if ( $atts['lazy'] === '-1' || $atts['lazy'] === false ) {
 			$atts['lazy'] = 'no';
 		}
 
@@ -472,11 +471,12 @@ public function get_visualizer_data( $post ) {
 			$permissions = get_post_meta( $post_id, Visualizer_Pro::CF_PERMISSIONS, true );
 
 			if ( empty( $permissions ) ) {
-				$permissions = array( 'permissions' => array(
+				$permissions = array(
+					'permissions' => array(
 						'read'          => 'all',
 						'edit'          => 'roles',
 						'edit-specific' => array( 'administrator' ),
-				),
+					),
 				);
 			}
 
@@ -824,7 +824,7 @@ public function get_permission_data( $data ) {
 					foreach ( $users as $user ) {
 						$options[ $i ]['value'] = $user->ID;
 						$options[ $i ]['label'] = $user->display_name;
-						$i++;
+						++$i;
 					}
 				}
 				break;
@@ -838,7 +838,7 @@ public function get_permission_data( $data ) {
 					foreach ( get_editable_roles() as $name => $info ) {
 						$options[ $i ]['value'] = $name;
 						$options[ $i ]['label'] = $name;
-						$i++;
+						++$i;
 					}
 				}
 				break;
diff --git a/classes/Visualizer/Module.php b/classes/Visualizer/Module.php
index e869aceb6..8a2a7311c 100644
--- a/classes/Visualizer/Module.php
+++ b/classes/Visualizer/Module.php
@@ -68,8 +68,7 @@ public function __construct( Visualizer_Plugin $plugin ) {
 		$this->_addFilter( Visualizer_Plugin::FILTER_HANDLE_REVISIONS, 'handleExistingRevisions', 10, 2 );
 		$this->_addFilter( Visualizer_Plugin::FILTER_GET_CHART_DATA_AS, 'getDataAs', 10, 3 );
 		$this->_addAction( 'pre_get_posts', 'PreGetPosts' );
-		register_shutdown_function( array($this, 'onShutdown') );
-
+		register_shutdown_function( array( $this, 'onShutdown' ) );
 	}
 
 	/**
@@ -114,16 +113,16 @@ protected function _addAction( $tag, $method, $methodClass = null, $priority = 1
 	 * @param string  $tag The name of the AJAX action to which the $method is hooked.
 	 * @param string  $method Optional. The name of the method to be called. If the name of the method is not provided, tag name will be used as method name.
 	 * @param bool    $methodClass The root of the method.
-	 * @param boolean $private Optional. Determines if we should register hook for logged in users.
-	 * @param boolean $public Optional. Determines if we should register hook for not logged in users.
+	 * @param boolean $logged_in Optional. Determines if we should register hook for logged in users.
+	 * @param boolean $logged_out Optional. Determines if we should register hook for not logged in users.
 	 * @return Visualizer_Module
 	 */
-	protected function _addAjaxAction( $tag, $method = '', $methodClass = null, $private = true, $public = false ) {
-		if ( $private ) {
+	protected function _addAjaxAction( $tag, $method = '', $methodClass = null, $logged_in = true, $logged_out = false ) {
+		if ( $logged_in ) {
 			$this->_addAction( 'wp_ajax_' . $tag, $method, $methodClass );
 		}
 
-		if ( $public ) {
+		if ( $logged_out ) {
 			$this->_addAction( 'wp_ajax_nopriv_' . $tag, $method, $methodClass );
 		}
 
@@ -169,7 +168,7 @@ protected function _addShortcode( $tag, $method ) {
 	 *
 	 * @since 3.2.0
 	 */
-	public function getDataAs( $final, $chart_id, $type ) {
+	public function getDataAs( $data, $chart_id, $type ) {
 		return $this->_getDataAs( $chart_id, $type );
 	}
 
@@ -290,8 +289,8 @@ private function _getCSV( $rows, $filename, $enclose ) {
 		}
 		rewind( $fp );
 		$csv = '';
-		// phpcs:ignore WordPress.CodeAnalysis.AssignmentInCondition.FoundInWhileCondition
-		while ( ( $array = fgetcsv( $fp ) ) !== false ) {
+		$array = fgetcsv( $fp );
+		while ( $array !== false ) {
 			if ( strlen( $csv ) > 0 ) {
 				$csv .= PHP_EOL;
 			}
@@ -307,7 +306,8 @@ private function _getCSV( $rows, $filename, $enclose ) {
 				}
 				$array = $temp_array;
 			}
-			$csv .= implode( ',', $array );
+			$csv  .= implode( ',', $array );
+			$array = fgetcsv( $fp );
 		}
 		fclose( $fp );
 
@@ -333,7 +333,7 @@ private function _getExcel( $rows, $filename ) {
 			unset( $rows[1] );
 			$rows = array_values( $rows );
 			$rows = array_map(
-				function( $r ) {
+				function ( $r ) {
 					return array_map( 'strval', $r );
 				},
 				$rows
@@ -405,7 +405,7 @@ private function _getHTML( $rows ) {
 		foreach ( $rows as $row ) {
 			// skip the data type row.
 			if ( 1 === $index ) {
-				$index++;
+				++$index;
 				continue;
 			}
 
@@ -418,7 +418,7 @@ private function _getHTML( $rows ) {
 				}
 			}
 			$table  .= '</tr>';
-			$index++;
+			++$index;
 		}
 		$table      .= '</table>';
 
@@ -433,9 +433,9 @@ private function _getHTML( $rows ) {
 	/**
 	 * Disable revisions temporarily for visualizer post type.
 	 */
-	protected final function disableRevisionsTemporarily() {
+	final protected function disableRevisionsTemporarily() {
 		add_filter(
-			'wp_revisions_to_keep', function( $num, $post ) {
+			'wp_revisions_to_keep', function ( $num, $post ) {
 				if ( $post->post_type === Visualizer_Plugin::CPT_VISUALIZER ) {
 					return 0;
 				}
@@ -449,7 +449,7 @@ protected final function disableRevisionsTemporarily() {
 	 *
 	 * @return bool If any revisions were found.
 	 */
-	public final function undoRevisions( $chart_id, $restore = false ) {
+	final public function undoRevisions( $chart_id, $restore = false ) {
 		do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, sprintf( 'undoRevisions for %d with%s restore', $chart_id, ( $restore ? '' : 'out' ) ), 'debug', __FILE__, __LINE__ );
 		if ( get_post_type( $chart_id ) !== Visualizer_Plugin::CPT_VISUALIZER ) {
 			return false;
@@ -481,7 +481,7 @@ public final function undoRevisions( $chart_id, $restore = false ) {
 	/**
 	 * If existing revisions exist for the chart, restore the earliest version and then create a new revision to initiate editing.
 	 */
-	public final function handleExistingRevisions( $chart_id, $chart ) {
+	final public function handleExistingRevisions( $chart_id, $chart ) {
 
 		do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, sprintf( 'handleExistingRevisions for %d', $chart_id ), 'debug', __FILE__, __LINE__ );
 		if ( get_post_type( $chart_id ) !== Visualizer_Plugin::CPT_VISUALIZER ) {
@@ -533,7 +533,7 @@ protected function get_user_customization_js() {
 		}
 
 		try {
-			require_once( ABSPATH . 'wp-admin/includes/file.php' );
+			require_once ABSPATH . 'wp-admin/includes/file.php';
 			WP_Filesystem();
 			global $wp_filesystem;
 			if ( ! is_a( $wp_filesystem, 'WP_Filesystem_Base' ) ) {
@@ -558,8 +558,8 @@ protected function get_user_customization_js() {
 			}
 
 			if ( ! $wp_filesystem->exists( $dir ) ) {
-				// phpcs:ignore WordPress.CodeAnalysis.AssignmentInCondition.Found
-				if ( ( $done = $wp_filesystem->mkdir( $dir ) ) === false ) {
+				$done = $wp_filesystem->mkdir( $dir );
+				if ( $done === false ) {
 					do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, sprintf( 'Unable to create directory %s', $dir ), 'error', __FILE__, __LINE__ );
 					return $default;
 				}
@@ -567,9 +567,9 @@ protected function get_user_customization_js() {
 
 			// if file does not exist, copy.
 			if ( ! $wp_filesystem->exists( $file ) ) {
-				$src    = str_replace( ABSPATH, $wp_filesystem->abspath(), VISUALIZER_ABSPATH . '/js/customization.js' );
-				// phpcs:ignore WordPress.CodeAnalysis.AssignmentInCondition.Found
-				if ( ( $done = $wp_filesystem->copy( $src, $file ) ) === false ) {
+				$src  = str_replace( ABSPATH, $wp_filesystem->abspath(), VISUALIZER_ABSPATH . '/js/customization.js' );
+				$done = $wp_filesystem->copy( $src, $file );
+				if ( $done === false ) {
 					do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, sprintf( 'Unable to copy file %s to %s', $src, $file ), 'error', __FILE__, __LINE__ );
 					return $default;
 				}
@@ -591,7 +591,7 @@ protected function load_chart_type( $chart_id ) {
 			if ( 'Visualizer_Render_Sidebar_Type_DataTable_DataTable' === $name ) {
 				$name = 'Visualizer_Render_Sidebar_Type_DataTable_Tabular';
 			}
-			$class  = new $name;
+			$class  = new $name();
 		}
 
 		if ( is_null( $class ) && Visualizer_Module::is_pro() ) {
@@ -752,7 +752,7 @@ public static function can_show_feature( $feature ) {
 	/**
 	 * Gets the features for the provided license type.
 	 */
-	public static final function get_features_for_license( $plan ) {
+	final public static function get_features_for_license( $plan ) {
 		$is_new_personal = apply_filters( 'visualizer_is_new_personal', false );
 		switch ( $plan ) {
 			case 1:
diff --git a/classes/Visualizer/Module/AMP.php b/classes/Visualizer/Module/AMP.php
index b9b3a079a..9b5977140 100644
--- a/classes/Visualizer/Module/AMP.php
+++ b/classes/Visualizer/Module/AMP.php
@@ -100,5 +100,4 @@ public function get_chart( $chart, $data, $series, $settings ) {
 		}
 		return $output['csv'];
 	}
-
 }
diff --git a/classes/Visualizer/Module/Admin.php b/classes/Visualizer/Module/Admin.php
index 2c02da8d0..02a3f16db 100644
--- a/classes/Visualizer/Module/Admin.php
+++ b/classes/Visualizer/Module/Admin.php
@@ -96,7 +96,6 @@ public function __construct( Visualizer_Plugin $plugin ) {
 		if ( defined( 'TI_E2E_TESTING' ) ) {
 			$this->load_cypress_hooks();
 		}
-
 	}
 	/**
 	 * Display review notice.
@@ -104,7 +103,7 @@ public function __construct( Visualizer_Plugin $plugin ) {
 	public function render_review_notice( $footer_text ) {
 		$current_screen = get_current_screen();
 
-		$visualizer_page_ids = ['toplevel_page_visualizer', 'visualizer_page_viz-support', 'visualizer_page_ti-about-visualizer' ];
+		$visualizer_page_ids = array( 'toplevel_page_visualizer', 'visualizer_page_viz-support', 'visualizer_page_ti-about-visualizer' );
 
 		if ( ! empty( $current_screen ) && isset( $current_screen->id ) ) {
 			foreach ( $visualizer_page_ids as $page_to_check ) {
@@ -134,7 +133,7 @@ public function render_review_notice( $footer_text ) {
 	private function load_cypress_hooks() {
 		// all charts should load on the same page without pagination.
 		add_filter(
-			'visualizer_query_args', function( $args ) {
+			'visualizer_query_args', function ( $args ) {
 				$args['posts_per_page'] = 20;
 				return $args;
 			}, 10, 1
@@ -253,8 +252,7 @@ public function restoreRevision( $post_id, $revision_id ) {
 	 * @access  public
 	 */
 	public function init() {
-		// phpcs:ignore WordPress.PHP.StrictComparisons.LooseComparison
-		if ( current_user_can( 'edit_posts' ) && current_user_can( 'edit_pages' ) && 'true' == get_user_option( 'rich_editing' ) ) {
+		if ( current_user_can( 'edit_posts' ) && current_user_can( 'edit_pages' ) && 'true' === get_user_option( 'rich_editing' ) ) {
 			$this->_addFilter( 'mce_external_languages', 'add_tinymce_lang', 10, 1 );
 			$this->_addFilter( 'mce_external_plugins', 'tinymce_plugin', 10, 1 );
 			$this->_addFilter( 'mce_buttons', 'register_mce_button', 10, 1 );
@@ -268,7 +266,7 @@ public function init() {
 	 * @since   ?
 	 * @access  friendly
 	 */
-	function get_strings_for_block( $settings ) {
+	public function get_strings_for_block( $settings ) {
 		$class = new Visualizer_Module_Language();
 		$strings         = $class->get_strings();
 		$array = array( 'visualizer_tinymce_plugin' => json_encode( $strings ) );
@@ -797,7 +795,7 @@ public function handleGetProSubMenu() {
 	/**
 	 * Adds the screen options for pagination.
 	 */
-	function addScreenOptions() {
+	public function addScreenOptions() {
 		$screen = get_current_screen();
 
 		// bail if it's some other page.
@@ -816,7 +814,7 @@ function addScreenOptions() {
 	/**
 	 * Returns the screen option for pagination.
 	 */
-	function setScreenOptions( $status, $option, $value ) {
+	public function setScreenOptions( $status, $option, $value ) {
 		if ( 'visualizer_library_per_page' === $option ) {
 			return $value;
 		}
diff --git a/classes/Visualizer/Module/Chart.php b/classes/Visualizer/Module/Chart.php
index e31133b1a..aaee18cc7 100644
--- a/classes/Visualizer/Module/Chart.php
+++ b/classes/Visualizer/Module/Chart.php
@@ -70,7 +70,6 @@ public function __construct( Visualizer_Plugin $plugin ) {
 		$this->_addAjaxAction( Visualizer_Plugin::ACTION_SAVE_FILTER_QUERY, 'saveFilter' );
 
 		$this->_addFilter( 'visualizer_get_sidebar', 'getSidebar', 10, 2 );
-
 	}
 
 	/**
@@ -539,7 +538,8 @@ public function renderChartPages() {
 		if ( ! empty( $_POST ) ) {
 			$_POST = map_deep( $_POST, 'wp_strip_all_tags' );
 		}
-		if ( ! $chart_id || ! ( $chart = get_post( $chart_id ) ) || $chart->post_type !== Visualizer_Plugin::CPT_VISUALIZER ) {
+		$chart = $chart_id ? get_post( $chart_id ) : null;
+		if ( ! $chart_id || ! $chart || $chart->post_type !== Visualizer_Plugin::CPT_VISUALIZER ) {
 			if ( empty( $_GET['lang'] ) || empty( $_GET['parent_chart_id'] ) ) {
 				$this->deleteOldCharts();
 				$default_type = isset( $_GET['type'] ) && ! empty( $_GET['type'] ) ? $_GET['type'] : 'line';
@@ -738,7 +738,7 @@ private function loadCodeEditorAssets( $chart_id ) {
 			wp_register_script( 'visualizer-codemirror-closebrackets', '//codemirror.net/addon/edit/closebrackets.js', array( 'visualizer-codemirror-core' ), Visualizer_Plugin::VERSION );
 			wp_register_script( 'visualizer-codemirror-sql', '//codemirror.net/mode/sql/sql.js', array( 'visualizer-codemirror-core' ), Visualizer_Plugin::VERSION );
 			wp_register_script( 'visualizer-codemirror-sql-hint', '//codemirror.net/addon/hint/sql-hint.js', array( 'visualizer-codemirror-core' ), Visualizer_Plugin::VERSION );
-			wp_register_script( 'visualizer-codemirror-hint', '//codemirror.net/addon/hint/show-hint.js', array(  'visualizer-codemirror-sql', 'visualizer-codemirror-sql-hint', 'visualizer-codemirror-placeholder', 'visualizer-codemirror-matchbrackets', 'visualizer-codemirror-closebrackets' ), Visualizer_Plugin::VERSION );
+			wp_register_script( 'visualizer-codemirror-hint', '//codemirror.net/addon/hint/show-hint.js', array( 'visualizer-codemirror-sql', 'visualizer-codemirror-sql-hint', 'visualizer-codemirror-placeholder', 'visualizer-codemirror-matchbrackets', 'visualizer-codemirror-closebrackets' ), Visualizer_Plugin::VERSION );
 			wp_register_style( 'visualizer-codemirror-core', '//codemirror.net/lib/codemirror.css', array(), Visualizer_Plugin::VERSION );
 			wp_register_style( 'visualizer-codemirror-hint', '//codemirror.net/addon/hint/show-hint.css', array( 'visualizer-codemirror-core' ), Visualizer_Plugin::VERSION );
 
@@ -862,10 +862,8 @@ private function _handleDataAndSettingsPage() {
 				array(
 					'ajax'      => array(
 						'url'     => admin_url( 'admin-ajax.php' ),
-						'nonces'  => array(
-						),
-						'actions' => array(
-						),
+						'nonces'  => array(),
+						'actions' => array(),
 					),
 				)
 			);
@@ -1028,7 +1026,7 @@ private function handleCSVasString( $data, $editor_type ) {
 						}
 						$row = explode( ',', $row );
 						$row = array_map(
-							function( $r ) {
+							function ( $r ) {
 								return '' === $r ? ' ' : $r;
 							},
 							$row
@@ -1079,7 +1077,7 @@ private function handleTabularData() {
 			if ( empty( $type ) ) {
 				$exclude[] = $index;
 			}
-			$index++;
+			++$index;
 		}
 
 		// when N headers are being renamed, the number of headers increases by N
@@ -1156,9 +1154,10 @@ public function uploadData() {
 		// check chart, if chart exists
 		// do not use filter_input as it does not work for phpunit test cases, use filter_var instead
 		$chart_id = isset( $_GET['chart'] ) ? filter_var( $_GET['chart'], FILTER_VALIDATE_INT ) : '';
+		$chart    = $chart_id ? get_post( $chart_id ) : null;
 		if (
 			! $chart_id ||
-			! ( $chart = get_post( $chart_id ) ) ||
+			! $chart ||
 			$chart->post_type !== Visualizer_Plugin::CPT_VISUALIZER ||
 			! current_user_can( 'edit_post', $chart_id )
 		) {
@@ -1214,8 +1213,7 @@ public function uploadData() {
 			if ( isset( $_POST['vz-import-time'] ) ) {
 				apply_filters( 'visualizer_pro_chart_schedule', $chart_id, $remote_data, $_POST['vz-import-time'] );
 			}
-			// phpcs:ignore WordPress.PHP.StrictComparisons.LooseComparison
-		} elseif ( isset( $_FILES['local_data'] ) && $_FILES['local_data']['error'] == 0 ) {
+		} elseif ( isset( $_FILES['local_data'] ) && $_FILES['local_data']['error'] === 0 ) {
 			$source = new Visualizer_Source_Csv( $_FILES['local_data']['tmp_name'] );
 		} elseif ( isset( $_POST['chart_data'] ) && strlen( $_POST['chart_data'] ) > 0 ) {
 			$source = $this->handleCSVasString( $_POST['chart_data'], $_POST['editor-type'] );
diff --git a/classes/Visualizer/Module/Frontend.php b/classes/Visualizer/Module/Frontend.php
index c8cb044bc..1905165e6 100644
--- a/classes/Visualizer/Module/Frontend.php
+++ b/classes/Visualizer/Module/Frontend.php
@@ -87,7 +87,7 @@ public function __construct( Visualizer_Plugin $plugin ) {
 	/**
 	 * Adds the async attribute to certain scripts.
 	 */
-	function script_loader_tag( $tag, $handle, $src ) {
+	public function script_loader_tag( $tag, $handle, $src ) {
 		if ( is_admin() ) {
 			return $tag;
 		}
@@ -98,7 +98,7 @@ function script_loader_tag( $tag, $handle, $src ) {
 				$tag = str_replace( ' src', ' async src', $tag );
 				break;
 			}
-		};
+		}
 
 		// Async scripts.
 		$scripts = array( 'dom-to-image' );
@@ -124,7 +124,7 @@ function script_loader_tag( $tag, $handle, $src ) {
 	/**
 	 * Returns the language/locale.
 	 */
-	function getLanguage( $dummy, $only_language ) {
+	public function getLanguage( $dummy, $only_language ) {
 		return $this->get_language();
 	}
 
@@ -132,7 +132,7 @@ function getLanguage( $dummy, $only_language ) {
 	/**
 	 * Registers the endpoints
 	 */
-	function endpoint_register() {
+	public function endpoint_register() {
 		register_rest_route(
 			'visualizer/v' . VISUALIZER_REST_VERSION,
 			'/action/(?P<chart>\d+)/(?P<type>.+)/',
@@ -142,7 +142,7 @@ function endpoint_register() {
 				'args'     => array(
 					'chart' => array(
 						'required' => true,
-						'sanitize_callback' => function( $param ) {
+						'sanitize_callback' => function ( $param ) {
 							return is_numeric( $param ) ? $param : null;
 						},
 					),
@@ -342,8 +342,8 @@ public function renderChart( $atts ) {
 		}
 
 		// in case revisions exist.
-		// phpcs:ignore WordPress.CodeAnalysis.AssignmentInCondition.Found
-		if ( true === ( $revisions = $this->undoRevisions( $chart->ID, true ) ) ) {
+		$revisions = $this->undoRevisions( $chart->ID, true );
+		if ( true === $revisions ) {
 			$chart = get_post( $chart->ID );
 		}
 
@@ -509,7 +509,7 @@ public function renderChart( $atts ) {
 					)
 				);
 			}
-			$count++;
+			++$count;
 		}
 		$prefix = 'C' . 'h' . 'a' . 'rt';
 		if ( $type === 'tabular' ) {
diff --git a/classes/Visualizer/Module/Language.php b/classes/Visualizer/Module/Language.php
index cfaafdac2..38239a644 100644
--- a/classes/Visualizer/Module/Language.php
+++ b/classes/Visualizer/Module/Language.php
@@ -19,7 +19,7 @@
  */
 
 if ( ! class_exists( '_WP_Editors' ) ) {
-	require( ABSPATH . WPINC . '/class-wp-editor.php' );
+	require ABSPATH . WPINC . '/class-wp-editor.php';
 }
 
 /**
@@ -79,7 +79,6 @@ public function tinymce_translation() {
 	public function get_strings() {
 		return $this->strings;
 	}
-
 }
 
 $visualizerLangClass = new Visualizer_Module_Language();
diff --git a/classes/Visualizer/Module/Sources.php b/classes/Visualizer/Module/Sources.php
index 8d93e2920..e058c3319 100644
--- a/classes/Visualizer/Module/Sources.php
+++ b/classes/Visualizer/Module/Sources.php
@@ -145,7 +145,7 @@ public function addProUpsell( $old, $feature = null ) {
 			if ( in_array( $feature, $biz_features, true ) && Visualizer_Module::is_pro() ) {
 				$msg = $plus_msg;
 			}
-			if ( in_array( $feature, [ 'db-query', 'chart-permissions' ], true ) ) {
+			if ( in_array( $feature, array( 'db-query', 'chart-permissions' ), true ) ) {
 				$msg = $plus_msg;
 			}
 
@@ -165,5 +165,4 @@ public function addProUpsell( $old, $feature = null ) {
 
 		return $return;
 	}
-
 }
diff --git a/classes/Visualizer/Module/Upgrade.php b/classes/Visualizer/Module/Upgrade.php
index 630dafe12..5bf975b60 100644
--- a/classes/Visualizer/Module/Upgrade.php
+++ b/classes/Visualizer/Module/Upgrade.php
@@ -71,6 +71,5 @@ private static function makeAllTableChartsTabular() {
 			AND pm.meta_value IN ( 'dataTable', 'table' )"
 		);
 		// phpcs:enable WordPress.DB.PreparedSQL.NotPrepared
-
 	}
 }
diff --git a/classes/Visualizer/Plugin.php b/classes/Visualizer/Plugin.php
index 62f6724e9..85cbfd425 100644
--- a/classes/Visualizer/Plugin.php
+++ b/classes/Visualizer/Plugin.php
@@ -222,10 +222,10 @@ public function hasModule( $name ) {
 	 *
 	 * @access public
 	 *
-	 * @param string $class The name of the module to use in the plugin.
+	 * @param string $class_name The name of the module to use in the plugin.
 	 */
-	public function setModule( $class ) {
-		$this->_modules[ $class ] = new $class( $this );
+	public function setModule( $class_name ) {
+		$this->_modules[ $class_name ] = new $class_name( $this );
 	}
 
 	/**
@@ -241,11 +241,10 @@ private function __clone() {
 	/**
 	 * For local testing, overrides the 'themeisle_log_event' hook and redirects to error.log.
 	 */
-	final function themeisle_log_event_debug( $name, $message, $type, $file, $line ) {
+	final public function themeisle_log_event_debug( $name, $message, $type, $file, $line ) {
 		if ( Visualizer_Plugin::NAME !== $name ) {
 			return;
 		}
 		error_log( sprintf( '%s (%s): %s in %s:%s', $name, $type, $message, $file, $line ) );
 	}
-
 }
diff --git a/classes/Visualizer/Render.php b/classes/Visualizer/Render.php
index bcb036fce..93b51bf30 100644
--- a/classes/Visualizer/Render.php
+++ b/classes/Visualizer/Render.php
@@ -112,7 +112,7 @@ public function __unset( $name ) {
 	 * @abstract
 	 * @access protected
 	 */
-	protected abstract function _toHTML();
+	abstract protected function _toHTML();
 
 	/**
 	 * Builds template and return it as string.
@@ -215,6 +215,4 @@ protected function can_chart_have_action( $action, $chart_id = null ) {
 
 		return true;
 	}
-
-
 }
diff --git a/classes/Visualizer/Render/Layout.php b/classes/Visualizer/Render/Layout.php
index a89353ef5..0585c5024 100644
--- a/classes/Visualizer/Render/Layout.php
+++ b/classes/Visualizer/Render/Layout.php
@@ -390,7 +390,6 @@ public static function _renderSimpleEditorScreen( $args ) {
 
 			</div>
 		<?php
-
 	}
 
 	/**
@@ -787,18 +786,18 @@ public static function _renderTabBasic( $args ) {
 											</p>
 											<input type="button" id="editor-undo" class="button button-secondary" style="display: none" value="<?php _e( 'Undo Changes', 'visualizer' ); ?>">
 											<input type="button" id="editor-button" class="button button-primary "
-												   value="<?php _e( 'Edit Data', 'visualizer' ); ?>" data-current="chart"
-												   data-t-editor="<?php _e( 'Show Chart', 'visualizer' ); ?>"
-												   data-t-chart="<?php _e( 'Edit Data', 'visualizer' ); ?>"
+													value="<?php _e( 'Edit Data', 'visualizer' ); ?>" data-current="chart"
+													data-t-editor="<?php _e( 'Show Chart', 'visualizer' ); ?>"
+													data-t-chart="<?php _e( 'Edit Data', 'visualizer' ); ?>"
 											>
 											<p class="viz-group-description viz-info-msg"><?php echo sprintf( __( 'Please make sure you click \'Show Chart\' before you save the chart.', 'visualizer' ) ); ?></p>
 										</div>
 										<?php } else { ?>
 											<input type="button" id="editor-undo" class="button button-secondary" style="display: none" value="<?php _e( 'Undo Changes', 'visualizer' ); ?>">
 											<input type="button" id="editor-chart-button" class="button button-primary "
-												   value="<?php _e( 'View Editor', 'visualizer' ); ?>" data-current="chart"
-												   data-t-editor="<?php _e( 'Show Chart', 'visualizer' ); ?>"
-												   data-t-chart="<?php _e( 'View Editor', 'visualizer' ); ?>"
+													value="<?php _e( 'View Editor', 'visualizer' ); ?>" data-current="chart"
+													data-t-editor="<?php _e( 'Show Chart', 'visualizer' ); ?>"
+													data-t-chart="<?php _e( 'View Editor', 'visualizer' ); ?>"
 											>
 											<p class="viz-group-description viz-info-msg"><?php echo sprintf( __( 'Please make sure you click \'Show Chart\' before you save the chart.', 'visualizer' ) ); ?></p>
 										<?php } ?>
@@ -1017,8 +1016,8 @@ class="dashicons dashicons-lock"></span></h2>
 											</select>
 										</form>
 										<input type="button" id="existing-chart" class="button button-primary"
-											   value="<?php _e( 'Import Chart', 'visualizer' ); ?>"
-											   data-viz-link="<?php echo $fetch_link; ?>">
+												value="<?php _e( 'Import Chart', 'visualizer' ); ?>"
+												data-viz-link="<?php echo $fetch_link; ?>">
 										<?php
 										if ( ! Visualizer_Module_Admin::proFeaturesLocked() ) {
 											echo apply_filters( 'visualizer_pro_upsell', '', 'import-chart' );
diff --git a/classes/Visualizer/Render/Library.php b/classes/Visualizer/Render/Library.php
index b4aba1b8d..dfb52aa95 100644
--- a/classes/Visualizer/Render/Library.php
+++ b/classes/Visualizer/Render/Library.php
@@ -152,7 +152,7 @@ private function getDisplayForm() {
 		}
 		$sources = array_filter( $sources );
 		uasort(
-			$sources, function( $a, $b ) {
+			$sources, function ( $a, $b ) {
 				if ( $a === $b ) {
 					return 0;
 				}
@@ -257,7 +257,6 @@ function closePopup() {
 					popup.style.display = "none";
 				}
 				</script>';
-
 	}
 	/**
 	 * Renders library content.
@@ -287,7 +286,7 @@ private function _renderLibrary() {
 			$count = 0;
 			foreach ( $this->charts as $placeholder_id => $chart ) {
 				// show the sidebar after the first 3 charts.
-				$count++;
+				++$count;
 				$enable_controls = false;
 				$settings = isset( $chart['settings'] ) ? $chart['settings'] : array();
 				if ( ! empty( $settings['controls']['controlType'] ) ) {
@@ -400,7 +399,7 @@ private function _renderChartBox( $placeholder_id, $chart_id, $with_filter = fal
 		);
 		$chart_type = get_post_meta( $chart_id, Visualizer_Plugin::CF_CHART_TYPE, true );
 
-		$types = ['area', 'geo', 'column', 'bubble', 'scatter', 'gauge', 'candlestick', 'timeline', 'combo', 'polarArea', 'radar' ];
+		$types = array( 'area', 'geo', 'column', 'bubble', 'scatter', 'gauge', 'candlestick', 'timeline', 'combo', 'polarArea', 'radar' );
 
 		$pro_class = '';
 
@@ -477,5 +476,4 @@ private function _renderSidebar() {
 			echo '</div>';
 		}
 	}
-
 }
diff --git a/classes/Visualizer/Render/Page.php b/classes/Visualizer/Render/Page.php
index aa5eacd6c..5f70c1e0c 100644
--- a/classes/Visualizer/Render/Page.php
+++ b/classes/Visualizer/Render/Page.php
@@ -86,5 +86,4 @@ protected function _renderSidebarContent() {}
 	 * @access protected
 	 */
 	protected function _renderToolbar() {}
-
 }
diff --git a/classes/Visualizer/Render/Page/Data.php b/classes/Visualizer/Render/Page/Data.php
index 9e248ec48..6730db0bd 100644
--- a/classes/Visualizer/Render/Page/Data.php
+++ b/classes/Visualizer/Render/Page/Data.php
@@ -93,7 +93,7 @@ protected function _renderSidebarContent() {
 			</div>
 			<div class="viz-info-item">
 				<label for="viz-backend-name"><?php _e( 'Backend chart title for internal usage', 'visualizer' ); ?></label>
-				<input type="text" id="viz-backend-name" value="<?php echo  $hasTitle ? $chartSettings['backend-title'] : ( '#' . esc_attr( $this->chart->ID ) ); ?>">
+				<input type="text" id="viz-backend-name" value="<?php echo $hasTitle ? $chartSettings['backend-title'] : ( '#' . esc_attr( $this->chart->ID ) ); ?>">
 			</div>
 		</div>
 		<div id="viz-tabs">
@@ -156,5 +156,4 @@ private function add_additional_content() {
 		Visualizer_Render_Layout::show( 'db-query', $query, $this->chart->ID );
 		Visualizer_Render_Layout::show( 'json-screen', $this->chart->ID );
 	}
-
 }
diff --git a/classes/Visualizer/Render/Page/Send.php b/classes/Visualizer/Render/Page/Send.php
index 3f21f2c26..b1cb52483 100644
--- a/classes/Visualizer/Render/Page/Send.php
+++ b/classes/Visualizer/Render/Page/Send.php
@@ -53,5 +53,4 @@ protected function _toHTML() {
 			echo '<body></body>';
 		echo '</html>';
 	}
-
 }
diff --git a/classes/Visualizer/Render/Page/Settings.php b/classes/Visualizer/Render/Page/Settings.php
index e3b1d37b0..a8133eb74 100644
--- a/classes/Visualizer/Render/Page/Settings.php
+++ b/classes/Visualizer/Render/Page/Settings.php
@@ -80,5 +80,4 @@ protected function _toHTML() {
 	protected function _renderSidebarContent() {
 		echo $this->sidebar;
 	}
-
 }
diff --git a/classes/Visualizer/Render/Page/Update.php b/classes/Visualizer/Render/Page/Update.php
index 0eb54d3fa..c9f8f6735 100644
--- a/classes/Visualizer/Render/Page/Update.php
+++ b/classes/Visualizer/Render/Page/Update.php
@@ -91,5 +91,4 @@ private function updateEditorAndSettings() {
 
 		return 'win.vizUpdateHTML(' . json_encode( array( 'html' => $editor ) ) . ', ' . json_encode( array( 'html' => $sidebar ) ) . ');';
 	}
-
 }
diff --git a/classes/Visualizer/Render/Sidebar.php b/classes/Visualizer/Render/Sidebar.php
index 79e400b43..5e13bd01f 100644
--- a/classes/Visualizer/Render/Sidebar.php
+++ b/classes/Visualizer/Render/Sidebar.php
@@ -208,7 +208,6 @@ protected function _renderAdvancedSettings() {
 
 		self::_renderSectionEnd();
 		self::_renderGroupEnd();
-
 	}
 
 	/**
@@ -276,7 +275,7 @@ protected function _renderActionSettings() {
 	private static function is_excel_enabled() {
 		$vendor_file = VISUALIZER_ABSPATH . '/vendor/autoload.php';
 		if ( is_readable( $vendor_file ) ) {
-			include_once( $vendor_file );
+			include_once $vendor_file;
 		}
 
 		if ( version_compare( phpversion(), '5.6.0', '<' ) ) {
@@ -313,7 +312,7 @@ public static function _renderSelectItem( $title, $name, $value, array $options,
 		echo '<div class="viz-section-item">';
 			echo '<a class="more-info" href="javascript:;">[?]</a>';
 			echo '<b>', $title, '</b>';
-			echo '<select class="control-select ', implode( ' ', $classes ) , '" name="', $name, '" ', ( $multiple ? 'multiple' : '' ), ' ' , $atts, '>';
+			echo '<select class="control-select ', implode( ' ', $classes ), '" name="', $name, '" ', ( $multiple ? 'multiple' : '' ), ' ', $atts, '>';
 		foreach ( $options as $key => $label ) {
 			// phpcs:ignore WordPress.PHP.StrictInArray.MissingTrueStrict
 			$extra      = $multiple && is_array( $value ) ? ( in_array( $key, $value ) ? 'selected' : '' ) : selected( $key, $value, false );
@@ -336,13 +335,13 @@ public static function _renderSelectItem( $title, $name, $value, array $options,
 	 * @param string $title The title of the select item.
 	 * @param string $name The name of the select item.
 	 * @param string $value The actual value of the select item.
-	 * @param string $default The default value of the color picker.
+	 * @param string $default_color The default value of the color picker.
 	 */
-	protected static function _renderColorPickerItem( $title, $name, $value, $default ) {
+	protected static function _renderColorPickerItem( $title, $name, $value, $default_color ) {
 		echo '<div class="viz-section-item">';
 			echo '<b>', $title, '</b>';
 			echo '<div>';
-				echo '<input type="text" class="color-picker-hex color-picker" data-alpha-enabled="true" name="', $name, '" maxlength="7" placeholder="', esc_attr__( 'Hex Value', 'visualizer' ), '" value="', is_null( $value ) ? $default : esc_attr( $value ), '" data-default-color="', $default, '">';
+				echo '<input type="text" class="color-picker-hex color-picker" data-alpha-enabled="true" name="', $name, '" maxlength="7" placeholder="', esc_attr__( 'Hex Value', 'visualizer' ), '" value="', is_null( $value ) ? $default_color : esc_attr( $value ), '" data-default-color="', $default_color, '">';
 			echo '</div>';
 		echo '</div>';
 	}
@@ -387,10 +386,10 @@ protected static function _renderTextItem( $title, $name, $value, $desc, $placeh
 	 * @access public
 	 * @param string $title The title of this group.
 	 * @param string $html Any additional HTML.
-	 * @param string $class Any additional classes.
+	 * @param string $extra_class Any additional classes.
 	 */
-	public static function _renderGroupStart( $title, $html = '', $class = '', $id = '' ) {
-		echo '<li id="' . $id . '" class="viz-group ' . $class . '">';
+	public static function _renderGroupStart( $title, $html = '', $extra_class = '', $id = '' ) {
+		echo '<li id="' . $id . '" class="viz-group ' . $extra_class . '">';
 			echo '<h3 class="viz-group-title">', $title, '</h3>';
 			echo $html;
 			echo '<ul class="viz-group-content">';
@@ -506,12 +505,11 @@ protected function _renderFormatField( $index = 0 ) {
 	/**
 	 * Render a checkbox item
 	 */
-	protected static function _renderCheckboxItem( $title, $name, $value, $default, $desc, $disabled = false ) {
+	protected static function _renderCheckboxItem( $title, $name, $value, $default_value, $desc, $disabled = false ) {
 		echo '<div class="viz-section-item">';
 			echo '<a class="more-info" href="javascript:;">[?]</a>';
 			echo '<b>', $title, '</b>';
-			// phpcs:ignore WordPress.PHP.StrictComparisons.LooseComparison
-			echo '<input type="checkbox" class="control-check" value="', $default, '" name="', $name, '" ', ( $value == $default ? 'checked' : '' ), ' ', ( $disabled ? 'disabled=disabled' : '' ), '>';
+			echo '<input type="checkbox" class="control-check" value="', $default_value, '" name="', $name, '" ', ( $value ? 'checked' : '' ), ' ', ( $disabled ? 'disabled=disabled' : '' ), '>';
 			echo '<p class="viz-section-description">', $desc, '</p>';
 		echo '</div>';
 	}
@@ -552,7 +550,6 @@ protected function load_dependent_assets( $libs ) {
 		if ( in_array( 'numeral', $libs, true ) && ! wp_script_is( 'numeral', 'registered' ) ) {
 			wp_register_script( 'numeral', VISUALIZER_ABSURL . 'js/lib/numeral.min.js', array(), Visualizer_Plugin::VERSION );
 		}
-
 	}
 
 	/**
@@ -656,8 +653,8 @@ protected function _renderChartControlsSettings() {
 			array( 'vz-controls-opt' )
 		);
 
-		$column_index = [ 'false' => '' ];
-		$column_label = [ 'false' => '' ];
+		$column_index = array( 'false' => '' );
+		$column_label = array( 'false' => '' );
 		if ( ! empty( $this->__series ) ) {
 			foreach ( $this->__series as $key => $column ) {
 				$column_type            = isset( $column['type'] ) ? $column['type'] : '';
diff --git a/classes/Visualizer/Render/Sidebar/ChartJS.php b/classes/Visualizer/Render/Sidebar/ChartJS.php
index d4da43b31..1323e6c2e 100644
--- a/classes/Visualizer/Render/Sidebar/ChartJS.php
+++ b/classes/Visualizer/Render/Sidebar/ChartJS.php
@@ -38,7 +38,6 @@ public function __construct( $data = array() ) {
 			'bottom' => esc_html__( 'Below the chart', 'visualizer' ),
 			'none'   => esc_html__( 'Omit the legend', 'visualizer' ),
 		);
-
 	}
 
 	/**
@@ -78,7 +77,7 @@ protected function hooks() {
 	/**
 	 * Loads the assets.
 	 */
-	function load_chartjs_assets( $deps, $is_frontend ) {
+	public function load_chartjs_assets( $deps, $is_frontend ) {
 		$this->load_dependent_assets( array( 'moment', 'numeral' ) );
 
 		wp_register_script( 'chartjs', VISUALIZER_ABSURL . 'js/lib/chartjs.min.js', array( 'numeral', 'moment' ), null, true );
@@ -96,7 +95,6 @@ function load_chartjs_assets( $deps, $is_frontend ) {
 			$deps,
 			array( 'visualizer-render-chartjs-lib' )
 		);
-
 	}
 
 	/**
@@ -133,7 +131,6 @@ protected function _renderSeriesSettings() {
 	protected function _renderSeries( $index ) {
 		$this->_renderFormatField( $index );
 		$this->_renderChartTypeSeries( $index );
-
 	}
 
 	/**
@@ -187,7 +184,6 @@ protected function _renderChartTitleSettings() {
 				'</a>'
 			)
 		);
-
 	}
 
 	/**
@@ -367,7 +363,6 @@ protected function _renderAnimationSettings() {
 		);
 
 		self::_renderSectionEnd();
-
 	}
 
 	/**
diff --git a/classes/Visualizer/Render/Sidebar/Columnar.php b/classes/Visualizer/Render/Sidebar/Columnar.php
index 460043b9e..1a1af1709 100644
--- a/classes/Visualizer/Render/Sidebar/Columnar.php
+++ b/classes/Visualizer/Render/Sidebar/Columnar.php
@@ -110,5 +110,4 @@ protected function _renderHorizontalAxisGeneralSettings() {
 			'#000'
 		);
 	}
-
 }
diff --git a/classes/Visualizer/Render/Sidebar/Google.php b/classes/Visualizer/Render/Sidebar/Google.php
index 3f7cd8198..5810cc1ed 100644
--- a/classes/Visualizer/Render/Sidebar/Google.php
+++ b/classes/Visualizer/Render/Sidebar/Google.php
@@ -82,7 +82,6 @@ public function __construct( $data = array() ) {
 			'center' => esc_html__( 'Centered in the allocated area', 'visualizer' ),
 			'end'    => esc_html__( 'Aligned to the end of the allocated area', 'visualizer' ),
 		);
-
 	}
 
 	/**
@@ -99,7 +98,7 @@ protected function hooks() {
 	/**
 	 * Loads the assets.
 	 */
-	function load_google_assets( $deps, $is_frontend ) {
+	public function load_google_assets( $deps, $is_frontend ) {
 		wp_register_script( 'google-jsapi', '//www.gstatic.com/charts/loader.js', array(), null, true );
 		wp_register_script( 'dom-to-image', VISUALIZER_ABSURL . 'js/lib/dom-to-image.min.js', array(), null, true );
 		wp_register_script(
@@ -117,7 +116,6 @@ function load_google_assets( $deps, $is_frontend ) {
 			$deps,
 			array( 'visualizer-render-google-lib' )
 		);
-
 	}
 
 	/**
@@ -309,7 +307,6 @@ protected function _renderAnimationSettings() {
 		);
 
 		self::_renderSectionEnd();
-
 	}
 
 	/**
diff --git a/classes/Visualizer/Render/Sidebar/Graph.php b/classes/Visualizer/Render/Sidebar/Graph.php
index 7ee73de7b..80a2a51a9 100644
--- a/classes/Visualizer/Render/Sidebar/Graph.php
+++ b/classes/Visualizer/Render/Sidebar/Graph.php
@@ -136,7 +136,6 @@ protected function _renderChartTitleSettings() {
 				'</a>'
 			)
 		);
-
 	}
 
 	/**
@@ -461,7 +460,6 @@ protected function _renderSeries( $index ) {
 		);
 
 		$this->_renderRoleField( $index );
-
 	}
 
 	/**
@@ -525,5 +523,4 @@ protected function _renderVerticalAxisFormatField() {
 			)
 		);
 	}
-
 }
diff --git a/classes/Visualizer/Render/Sidebar/Linear.php b/classes/Visualizer/Render/Sidebar/Linear.php
index 5769f4bc4..7a7b250f8 100644
--- a/classes/Visualizer/Render/Sidebar/Linear.php
+++ b/classes/Visualizer/Render/Sidebar/Linear.php
@@ -291,7 +291,5 @@ protected function _renderSeries( $index ) {
 		);
 
 		$this->_renderRoleField( $index );
-
 	}
-
 }
diff --git a/classes/Visualizer/Render/Sidebar/Type/ChartJS/Bar.php b/classes/Visualizer/Render/Sidebar/Type/ChartJS/Bar.php
index 807ae4376..7f0bdb385 100644
--- a/classes/Visualizer/Render/Sidebar/Type/ChartJS/Bar.php
+++ b/classes/Visualizer/Render/Sidebar/Type/ChartJS/Bar.php
@@ -131,6 +131,5 @@ protected function _renderChartTypeSettings() {
 			self::_renderSectionEnd();
 
 		self::_renderGroupEnd();
-
 	}
 }
diff --git a/classes/Visualizer/Render/Sidebar/Type/ChartJS/Linear.php b/classes/Visualizer/Render/Sidebar/Type/ChartJS/Linear.php
index a1646331b..f42cac084 100644
--- a/classes/Visualizer/Render/Sidebar/Type/ChartJS/Linear.php
+++ b/classes/Visualizer/Render/Sidebar/Type/ChartJS/Linear.php
@@ -79,7 +79,6 @@ protected function _renderHorizontalTickSettings() {
 			);
 
 		self::_renderSectionEnd();
-
 	}
 
 	/**
@@ -124,7 +123,6 @@ protected function _renderVerticalTickSettings() {
 			);
 
 		self::_renderSectionEnd();
-
 	}
 
 	/**
@@ -318,6 +316,5 @@ protected function _renderVerticalAxisGeneralSettings() {
 			);
 
 		self::_renderSectionEnd();
-
 	}
 }
diff --git a/classes/Visualizer/Render/Sidebar/Type/ChartJS/Pie.php b/classes/Visualizer/Render/Sidebar/Type/ChartJS/Pie.php
index 987dbf202..96fb590b7 100644
--- a/classes/Visualizer/Render/Sidebar/Type/ChartJS/Pie.php
+++ b/classes/Visualizer/Render/Sidebar/Type/ChartJS/Pie.php
@@ -86,7 +86,6 @@ protected function _renderSliceSettings( $index ) {
 			isset( $this->slices[ $index ]['hoverBackgroundColor'] ) ? $this->slices[ $index ]['hoverBackgroundColor'] : null,
 			null
 		);
-
 	}
 
 	/**
diff --git a/classes/Visualizer/Render/Sidebar/Type/DataTable/DataTable.php b/classes/Visualizer/Render/Sidebar/Type/DataTable/DataTable.php
index fd48a5130..f54fae500 100644
--- a/classes/Visualizer/Render/Sidebar/Type/DataTable/DataTable.php
+++ b/classes/Visualizer/Render/Sidebar/Type/DataTable/DataTable.php
@@ -60,7 +60,7 @@ protected function hooks() {
 	 *
 	 * @access public
 	 */
-	function load_assets( $deps, $is_frontend ) {
+	public function load_assets( $deps, $is_frontend ) {
 		$this->load_dependent_assets( array( 'moment' ) );
 
 		wp_register_script( 'visualizer-datatables', VISUALIZER_ABSURL . 'js/lib/datatables.min.js', array( 'jquery-ui-core', 'moment' ), Visualizer_Plugin::VERSION );
@@ -103,7 +103,7 @@ protected function _toHTML() {
 		$this->_supportsAnimation = false;
 		$this->_renderGeneralSettings();
 		$this->_renderTableSettings();
-		 $this->_renderColumnSettings();
+		$this->_renderColumnSettings();
 		$this->_renderAdvancedSettings();
 	}
 
@@ -523,5 +523,4 @@ protected function _renderFormatField( $index = 0 ) {
 				break;
 		}
 	}
-
 }
diff --git a/classes/Visualizer/Render/Sidebar/Type/DataTable/Tabular.php b/classes/Visualizer/Render/Sidebar/Type/DataTable/Tabular.php
index 7839f34dc..d84334fd7 100644
--- a/classes/Visualizer/Render/Sidebar/Type/DataTable/Tabular.php
+++ b/classes/Visualizer/Render/Sidebar/Type/DataTable/Tabular.php
@@ -58,7 +58,7 @@ protected function hooks() {
 	 *
 	 * @access public
 	 */
-	function load_assets( $deps, $is_frontend ) {
+	public function load_assets( $deps, $is_frontend ) {
 		$this->load_dependent_assets( array( 'moment' ) );
 
 		wp_register_script( 'visualizer-datatables', VISUALIZER_ABSURL . 'js/lib/datatables.min.js', array( 'jquery-ui-core', 'moment' ), Visualizer_Plugin::VERSION );
@@ -101,7 +101,7 @@ protected function _toHTML() {
 		$this->_supportsAnimation = false;
 		$this->_renderGeneralSettings();
 		$this->_renderTableSettings();
-		 $this->_renderColumnSettings();
+		$this->_renderColumnSettings();
 		$this->_renderAdvancedSettings();
 	}
 
@@ -499,5 +499,4 @@ protected function _renderFormatField( $index = 0 ) {
 				break;
 		}
 	}
-
 }
diff --git a/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Area.php b/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Area.php
index d4a522362..3d5c0bce4 100644
--- a/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Area.php
+++ b/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Area.php
@@ -148,5 +148,4 @@ protected function _renderSeries( $index ) {
 			null
 		);
 	}
-
 }
diff --git a/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Bar.php b/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Bar.php
index fb1f38a55..098f8a8e3 100644
--- a/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Bar.php
+++ b/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Bar.php
@@ -72,5 +72,4 @@ protected function _toHTML() {
 		$this->_renderViewSettings();
 		$this->_renderAdvancedSettings();
 	}
-
 }
diff --git a/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Bubble.php b/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Bubble.php
index 203ad8874..28d2761a0 100644
--- a/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Bubble.php
+++ b/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Bubble.php
@@ -115,8 +115,5 @@ protected function _renderBubbleSettings() {
 
 			self::_renderSectionEnd();
 		self::_renderGroupEnd();
-
 	}
-
-
 }
diff --git a/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Candlestick.php b/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Candlestick.php
index 04eec1042..453d469b3 100644
--- a/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Candlestick.php
+++ b/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Candlestick.php
@@ -175,5 +175,4 @@ protected function _renderSeries( $index ) {
 			null
 		);
 	}
-
 }
diff --git a/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Column.php b/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Column.php
index a9f8024e1..24ee5e3cb 100644
--- a/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Column.php
+++ b/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Column.php
@@ -72,5 +72,4 @@ protected function _toHTML() {
 		$this->_renderViewSettings();
 		$this->_renderAdvancedSettings();
 	}
-
 }
diff --git a/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Gauge.php b/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Gauge.php
index a3529e8a4..56a2c4db1 100644
--- a/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Gauge.php
+++ b/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Gauge.php
@@ -309,5 +309,4 @@ protected function _renderViewSettings() {
 			self::_renderSectionEnd();
 		self::_renderGroupEnd();
 	}
-
 }
diff --git a/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Geo.php b/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Geo.php
index 4b72929bc..2c07589c1 100644
--- a/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Geo.php
+++ b/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Geo.php
@@ -465,5 +465,4 @@ protected function _renderViewSettings() {
 			self::_renderSectionEnd();
 		self::_renderGroupEnd();
 	}
-
 }
diff --git a/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Line.php b/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Line.php
index 8f2f786d5..e8c954353 100644
--- a/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Line.php
+++ b/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Line.php
@@ -66,5 +66,4 @@ protected function _renderLineSettingsItems() {
 			esc_html__( 'Whether to guess the value of missing points. If yes, it will guess the value of any missing data based on neighboring points. If no, it will leave a break in the line at the unknown point.', 'visualizer' )
 		);
 	}
-
 }
diff --git a/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Pie.php b/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Pie.php
index 16c2a0840..17e4624bc 100644
--- a/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Pie.php
+++ b/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Pie.php
@@ -229,5 +229,4 @@ protected function _renderTooltipSettigns() {
 			esc_html__( 'Determines what information to display when the user hovers over a pie slice.', 'visualizer' )
 		);
 	}
-
 }
diff --git a/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Scatter.php b/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Scatter.php
index 7706d3369..ae1b4c534 100644
--- a/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Scatter.php
+++ b/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Scatter.php
@@ -60,5 +60,4 @@ protected function _toHTML() {
 		$this->_renderViewSettings();
 		$this->_renderAdvancedSettings();
 	}
-
 }
diff --git a/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Tabular.php b/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Tabular.php
index 163645c11..30a8a303c 100644
--- a/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Tabular.php
+++ b/classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Tabular.php
@@ -410,5 +410,4 @@ protected function _renderSeries( $index ) {
 	protected function _renderSeriesSettings() {
 		parent::_renderSeriesSettings();
 	}
-
 }
diff --git a/classes/Visualizer/Render/Templates.php b/classes/Visualizer/Render/Templates.php
index 26676e2af..d8998a66f 100644
--- a/classes/Visualizer/Render/Templates.php
+++ b/classes/Visualizer/Render/Templates.php
@@ -105,5 +105,4 @@ protected function _toHTML() {
 			$this->_renderTemplate( $template, $callback );
 		}
 	}
-
 }
diff --git a/classes/Visualizer/Source.php b/classes/Visualizer/Source.php
index 7b3d6b597..ecd186249 100644
--- a/classes/Visualizer/Source.php
+++ b/classes/Visualizer/Source.php
@@ -109,7 +109,7 @@ protected static function _validateTypes( $types ) {
 	 * @access public
 	 * @return string The name of source.
 	 */
-	public abstract function getSourceName();
+	abstract public function getSourceName();
 
 	/**
 	 * Fetches information from source, parses it and builds series and data arrays.
@@ -119,7 +119,7 @@ public abstract function getSourceName();
 	 * @abstract
 	 * @access public
 	 */
-	public abstract function fetch();
+	abstract public function fetch();
 
 	/**
 	 * Returns series parsed from source.
@@ -263,7 +263,7 @@ protected function _normalizeData( $data ) {
 	 *
 	 * @return string The converted data.
 	 */
-	protected final function toUTF8( $datum ) {
+	final protected function toUTF8( $datum ) {
 		if ( ! function_exists( 'mb_detect_encoding' ) || mb_detect_encoding( $datum ) !== 'ASCII' ) {
 			$datum = \ForceUTF8\Encoding::toUTF8( $datum );
 		}
@@ -280,7 +280,7 @@ protected final function toUTF8( $datum ) {
 	 *
 	 * @return array
 	 */
-	public static final function get_date_formats_if_exists( $series, $data ) {
+	final public static function get_date_formats_if_exists( $series, $data ) {
 		$date_formats = array();
 		$types = array();
 		$index = 0;
@@ -288,7 +288,7 @@ public static final function get_date_formats_if_exists( $series, $data ) {
 			if ( in_array( $column['type'], array( 'date', 'datetime', 'timeofday' ), true ) ) {
 				$types[] = array( 'index' => $index, 'type' => $column['type'] );
 			}
-			$index++;
+			++$index;
 		}
 
 		if ( ! $types ) {
@@ -474,6 +474,4 @@ private function _fetchDataFromEditableTable() {
 
 		return true;
 	}
-
-
 }
diff --git a/classes/Visualizer/Source/Csv.php b/classes/Visualizer/Source/Csv.php
index 796658646..5d4e91873 100644
--- a/classes/Visualizer/Source/Csv.php
+++ b/classes/Visualizer/Source/Csv.php
@@ -143,9 +143,10 @@ public function fetch() {
 			}
 
 			// fetch data
-			// phpcs:ignore WordPress.CodeAnalysis.AssignmentInCondition.FoundInWhileCondition
-			while ( ( $data = fgetcsv( $handle, 0, VISUALIZER_CSV_DELIMITER, VISUALIZER_CSV_ENCLOSURE ) ) !== false ) {
+			$data = fgetcsv( $handle, 0, VISUALIZER_CSV_DELIMITER, VISUALIZER_CSV_ENCLOSURE );
+			while ( $data !== false ) {
 				$this->_data[] = $this->_normalizeData( $data );
+				$data = fgetcsv( $handle, 0, VISUALIZER_CSV_DELIMITER, VISUALIZER_CSV_ENCLOSURE );
 			}
 
 			// close file handle
diff --git a/classes/Visualizer/Source/Csv/Remote.php b/classes/Visualizer/Source/Csv/Remote.php
index 3261133a1..e034ca15e 100644
--- a/classes/Visualizer/Source/Csv/Remote.php
+++ b/classes/Visualizer/Source/Csv/Remote.php
@@ -161,5 +161,4 @@ protected function _get_file_handle( $filename = false ) {
 
 		return ! is_wp_error( $this->_tmpfile ) ? parent::_get_file_handle( $this->_tmpfile ) : false;
 	}
-
 }
diff --git a/classes/Visualizer/Source/Json.php b/classes/Visualizer/Source/Json.php
index 2961cd3ba..027b4c0fc 100644
--- a/classes/Visualizer/Source/Json.php
+++ b/classes/Visualizer/Source/Json.php
@@ -321,7 +321,6 @@ private function collectCommonElements( $data ) {
 		}
 
 		return $rows;
-
 	}
 
 	/**
@@ -331,7 +330,7 @@ private function collectCommonElements( $data ) {
 	 *
 	 * @access private
 	 */
-	private function getNextPage( $array ) {
+	private function getNextPage( $data ) {
 		if ( empty( $this->_paging ) ) {
 			return null;
 		}
@@ -339,10 +338,10 @@ private function getNextPage( $array ) {
 		$root   = explode( self::TAG_SEPARATOR, $this->_paging );
 		// get rid of the first element as that is the faux root element indicator
 		array_shift( $root );
-		$leaf   = $array;
+		$leaf   = $data;
 		foreach ( $root as $tag ) {
 			if ( array_key_exists( $tag, $leaf ) ) {
-				$leaf = $array[ $tag ];
+				$leaf = $data[ $tag ];
 			} else {
 				// if the tag does not exist, we assume it is present in the 0th element of the current array.
 				// TODO: we may want to change this to a filter later.
@@ -362,19 +361,19 @@ private function getNextPage( $array ) {
 	 *
 	 * @access private
 	 */
-	private function getRootElements( $parent, $now, $root, $array ) {
-		if ( is_null( $array ) ) {
+	private function getRootElements( $parent_key, $now, $root, $data ) {
+		if ( is_null( $data ) ) {
 			return null;
 		}
 
-		$root[] = $parent;
-		foreach ( $array as $key => $value ) {
+		$root[] = $parent_key;
+		foreach ( $data as $key => $value ) {
 			if ( is_array( $value ) && ! empty( $value ) ) {
 				if ( ! is_numeric( $key ) ) {
-					$now = sprintf( '%s%s%s', $parent, self::TAG_SEPARATOR, $key );
+					$now = sprintf( '%s%s%s', $parent_key, self::TAG_SEPARATOR, $key );
 					$root[] = $now;
 				} else {
-					$now = $parent;
+					$now = $parent_key;
 				}
 				$root = $this->getRootElements( $now, $key, $root, $value );
 			}
@@ -442,7 +441,7 @@ private function connect( $url ) {
 			$this->_additional_headers = array_filter( $this->_additional_headers );
 			if ( ! empty( $this->_additional_headers ) ) {
 				$this->_additional_headers = array_map(
-					function( $headers ) {
+					function ( $headers ) {
 						$headers = explode( ':', $headers );
 						$headers = array_map( 'trim', $headers );
 						return $headers;
@@ -555,5 +554,4 @@ private function is_woocommerce_request( $url ) {
 	public function getSourceName() {
 		return __CLASS__;
 	}
-
 }
diff --git a/classes/Visualizer/Source/Query.php b/classes/Visualizer/Source/Query.php
index 9b9f6622e..b08798c8e 100644
--- a/classes/Visualizer/Source/Query.php
+++ b/classes/Visualizer/Source/Query.php
@@ -152,7 +152,8 @@ function ( $value ) {
 		$headers    = array();
 
 		// short circuit results for remote dbs.
-		if ( false !== ( $remote_results = apply_filters( 'visualizer_db_query_execute', false, $this->_query, $as_html, $results_as_numeric_array, $raw_results, $this->_chart_id, $this->_params ) ) ) {
+		$remote_results = apply_filters( 'visualizer_db_query_execute', false, $this->_query, $as_html, $results_as_numeric_array, $raw_results, $this->_chart_id, $this->_params );
+		if ( false !== $remote_results ) {
 			$error = $remote_results['error'];
 			if ( empty( $error ) ) {
 				$results = $remote_results['results'];
@@ -180,7 +181,7 @@ function ( $value ) {
 
 			if ( $wpdb->last_error ) {
 				$this->_error = $wpdb->last_error;
-				return [];
+				return array();
 			}
 
 			if ( $rows ) {
@@ -198,7 +199,7 @@ function ( $value ) {
 							}
 						}
 						$results[] = $result;
-						$row_num++;
+						++$row_num;
 					}
 				}
 
diff --git a/classes/Visualizer/Source/Query/Params.php b/classes/Visualizer/Source/Query/Params.php
index 0309a9916..528b23ec6 100644
--- a/classes/Visualizer/Source/Query/Params.php
+++ b/classes/Visualizer/Source/Query/Params.php
@@ -79,7 +79,7 @@ private function rearrange_columns_for_x_axis( $columns, $select, $tables ) {
 					}
 				}
 			}
-			$index++;
+			++$index;
 		}
 
 		if ( $first ) {
diff --git a/composer.json b/composer.json
index dee763adc..1e76b0961 100644
--- a/composer.json
+++ b/composer.json
@@ -48,7 +48,7 @@
     }
   },
   "require-dev": {
-    "wp-coding-standards/wpcs": "^2.3",
+    "wp-coding-standards/wpcs": "^3.3",
     "dealerdirect/phpcodesniffer-composer-installer": "^1.0.0",
     "phpcompatibility/phpcompatibility-wp": "*",
     "phpstan/phpstan": "^2.1",
diff --git a/composer.lock b/composer.lock
index 7d0aaec33..2becf81de 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "42014bd28da227466c93a0e2084644c8",
+    "content-hash": "f939ee5350ac149f2ec1e5fca3a9ec30",
     "packages": [
         {
             "name": "codeinwp/themeisle-sdk",
@@ -181,29 +181,29 @@
     "packages-dev": [
         {
             "name": "dealerdirect/phpcodesniffer-composer-installer",
-            "version": "v1.0.0",
+            "version": "v1.2.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/PHPCSStandards/composer-installer.git",
-                "reference": "4be43904336affa5c2f70744a348312336afd0da"
+                "reference": "845eb62303d2ca9b289ef216356568ccc075ffd1"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/PHPCSStandards/composer-installer/zipball/4be43904336affa5c2f70744a348312336afd0da",
-                "reference": "4be43904336affa5c2f70744a348312336afd0da",
+                "url": "https://api.github.com/repos/PHPCSStandards/composer-installer/zipball/845eb62303d2ca9b289ef216356568ccc075ffd1",
+                "reference": "845eb62303d2ca9b289ef216356568ccc075ffd1",
                 "shasum": ""
             },
             "require": {
-                "composer-plugin-api": "^1.0 || ^2.0",
+                "composer-plugin-api": "^2.2",
                 "php": ">=5.4",
-                "squizlabs/php_codesniffer": "^2.0 || ^3.1.0 || ^4.0"
+                "squizlabs/php_codesniffer": "^3.1.0 || ^4.0"
             },
             "require-dev": {
-                "composer/composer": "*",
+                "composer/composer": "^2.2",
                 "ext-json": "*",
                 "ext-zip": "*",
-                "php-parallel-lint/php-parallel-lint": "^1.3.1",
-                "phpcompatibility/php-compatibility": "^9.0",
+                "php-parallel-lint/php-parallel-lint": "^1.4.0",
+                "phpcompatibility/php-compatibility": "^9.0 || ^10.0.0@dev",
                 "yoast/phpunit-polyfills": "^1.0"
             },
             "type": "composer-plugin",
@@ -222,9 +222,9 @@
             "authors": [
                 {
                     "name": "Franck Nijhof",
-                    "email": "franck.nijhof@dealerdirect.com",
-                    "homepage": "http://www.frenck.nl",
-                    "role": "Developer / IT Manager"
+                    "email": "opensource@frenck.dev",
+                    "homepage": "https://frenck.dev",
+                    "role": "Open source developer"
                 },
                 {
                     "name": "Contributors",
@@ -232,7 +232,6 @@
                 }
             ],
             "description": "PHP_CodeSniffer Standards Composer Installer Plugin",
-            "homepage": "http://www.dealerdirect.com",
             "keywords": [
                 "PHPCodeSniffer",
                 "PHP_CodeSniffer",
@@ -253,9 +252,28 @@
             ],
             "support": {
                 "issues": "https://github.com/PHPCSStandards/composer-installer/issues",
+                "security": "https://github.com/PHPCSStandards/composer-installer/security/policy",
                 "source": "https://github.com/PHPCSStandards/composer-installer"
             },
-            "time": "2023-01-05T11:28:13+00:00"
+            "funding": [
+                {
+                    "url": "https://github.com/PHPCSStandards",
+                    "type": "github"
+                },
+                {
+                    "url": "https://github.com/jrfnl",
+                    "type": "github"
+                },
+                {
+                    "url": "https://opencollective.com/php_codesniffer",
+                    "type": "open_collective"
+                },
+                {
+                    "url": "https://thanks.dev/u/gh/phpcsstandards",
+                    "type": "thanks_dev"
+                }
+            ],
+            "time": "2025-11-11T04:32:07+00:00"
         },
         {
             "name": "doctrine/instantiator",
@@ -828,6 +846,181 @@
             ],
             "time": "2025-10-18T00:05:59+00:00"
         },
+        {
+            "name": "phpcsstandards/phpcsextra",
+            "version": "1.5.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/PHPCSStandards/PHPCSExtra.git",
+                "reference": "b598aa890815b8df16363271b659d73280129101"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/PHPCSStandards/PHPCSExtra/zipball/b598aa890815b8df16363271b659d73280129101",
+                "reference": "b598aa890815b8df16363271b659d73280129101",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.4",
+                "phpcsstandards/phpcsutils": "^1.2.0",
+                "squizlabs/php_codesniffer": "^3.13.5 || ^4.0.1"
+            },
+            "require-dev": {
+                "php-parallel-lint/php-console-highlighter": "^1.0",
+                "php-parallel-lint/php-parallel-lint": "^1.4.0",
+                "phpcsstandards/phpcsdevcs": "^1.2.0",
+                "phpcsstandards/phpcsdevtools": "^1.2.1",
+                "phpunit/phpunit": "^4.5 || ^5.0 || ^6.0 || ^7.0 || ^8.0 || ^9.3.4"
+            },
+            "type": "phpcodesniffer-standard",
+            "extra": {
+                "branch-alias": {
+                    "dev-stable": "1.x-dev",
+                    "dev-develop": "1.x-dev"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "LGPL-3.0-or-later"
+            ],
+            "authors": [
+                {
+                    "name": "Juliette Reinders Folmer",
+                    "homepage": "https://github.com/jrfnl",
+                    "role": "lead"
+                },
+                {
+                    "name": "Contributors",
+                    "homepage": "https://github.com/PHPCSStandards/PHPCSExtra/graphs/contributors"
+                }
+            ],
+            "description": "A collection of sniffs and standards for use with PHP_CodeSniffer.",
+            "keywords": [
+                "PHP_CodeSniffer",
+                "phpcbf",
+                "phpcodesniffer-standard",
+                "phpcs",
+                "standards",
+                "static analysis"
+            ],
+            "support": {
+                "issues": "https://github.com/PHPCSStandards/PHPCSExtra/issues",
+                "security": "https://github.com/PHPCSStandards/PHPCSExtra/security/policy",
+                "source": "https://github.com/PHPCSStandards/PHPCSExtra"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/PHPCSStandards",
+                    "type": "github"
+                },
+                {
+                    "url": "https://github.com/jrfnl",
+                    "type": "github"
+                },
+                {
+                    "url": "https://opencollective.com/php_codesniffer",
+                    "type": "open_collective"
+                },
+                {
+                    "url": "https://thanks.dev/u/gh/phpcsstandards",
+                    "type": "thanks_dev"
+                }
+            ],
+            "time": "2025-11-12T23:06:57+00:00"
+        },
+        {
+            "name": "phpcsstandards/phpcsutils",
+            "version": "1.2.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/PHPCSStandards/PHPCSUtils.git",
+                "reference": "c216317e96c8b3f5932808f9b0f1f7a14e3bbf55"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/PHPCSStandards/PHPCSUtils/zipball/c216317e96c8b3f5932808f9b0f1f7a14e3bbf55",
+                "reference": "c216317e96c8b3f5932808f9b0f1f7a14e3bbf55",
+                "shasum": ""
+            },
+            "require": {
+                "dealerdirect/phpcodesniffer-composer-installer": "^0.4.1 || ^0.5 || ^0.6.2 || ^0.7 || ^1.0",
+                "php": ">=5.4",
+                "squizlabs/php_codesniffer": "^3.13.5 || ^4.0.1"
+            },
+            "require-dev": {
+                "ext-filter": "*",
+                "php-parallel-lint/php-console-highlighter": "^1.0",
+                "php-parallel-lint/php-parallel-lint": "^1.4.0",
+                "phpcsstandards/phpcsdevcs": "^1.2.0",
+                "yoast/phpunit-polyfills": "^1.1.0 || ^2.0.0 || ^3.0.0"
+            },
+            "type": "phpcodesniffer-standard",
+            "extra": {
+                "branch-alias": {
+                    "dev-stable": "1.x-dev",
+                    "dev-develop": "1.x-dev"
+                }
+            },
+            "autoload": {
+                "classmap": [
+                    "PHPCSUtils/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "LGPL-3.0-or-later"
+            ],
+            "authors": [
+                {
+                    "name": "Juliette Reinders Folmer",
+                    "homepage": "https://github.com/jrfnl",
+                    "role": "lead"
+                },
+                {
+                    "name": "Contributors",
+                    "homepage": "https://github.com/PHPCSStandards/PHPCSUtils/graphs/contributors"
+                }
+            ],
+            "description": "A suite of utility functions for use with PHP_CodeSniffer",
+            "homepage": "https://phpcsutils.com/",
+            "keywords": [
+                "PHP_CodeSniffer",
+                "phpcbf",
+                "phpcodesniffer-standard",
+                "phpcs",
+                "phpcs3",
+                "phpcs4",
+                "standards",
+                "static analysis",
+                "tokens",
+                "utility"
+            ],
+            "support": {
+                "docs": "https://phpcsutils.com/",
+                "issues": "https://github.com/PHPCSStandards/PHPCSUtils/issues",
+                "security": "https://github.com/PHPCSStandards/PHPCSUtils/security/policy",
+                "source": "https://github.com/PHPCSStandards/PHPCSUtils"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/PHPCSStandards",
+                    "type": "github"
+                },
+                {
+                    "url": "https://github.com/jrfnl",
+                    "type": "github"
+                },
+                {
+                    "url": "https://opencollective.com/php_codesniffer",
+                    "type": "open_collective"
+                },
+                {
+                    "url": "https://thanks.dev/u/gh/phpcsstandards",
+                    "type": "thanks_dev"
+                }
+            ],
+            "time": "2025-12-08T14:27:58+00:00"
+        },
         {
             "name": "phpstan/phpstan",
             "version": "2.1.40",
@@ -2324,16 +2517,16 @@
         },
         {
             "name": "squizlabs/php_codesniffer",
-            "version": "3.13.4",
+            "version": "3.13.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/PHPCSStandards/PHP_CodeSniffer.git",
-                "reference": "ad545ea9c1b7d270ce0fc9cbfb884161cd706119"
+                "reference": "0ca86845ce43291e8f5692c7356fccf3bcf02bf4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/PHPCSStandards/PHP_CodeSniffer/zipball/ad545ea9c1b7d270ce0fc9cbfb884161cd706119",
-                "reference": "ad545ea9c1b7d270ce0fc9cbfb884161cd706119",
+                "url": "https://api.github.com/repos/PHPCSStandards/PHP_CodeSniffer/zipball/0ca86845ce43291e8f5692c7356fccf3bcf02bf4",
+                "reference": "0ca86845ce43291e8f5692c7356fccf3bcf02bf4",
                 "shasum": ""
             },
             "require": {
@@ -2350,11 +2543,6 @@
                 "bin/phpcs"
             ],
             "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "3.x-dev"
-                }
-            },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
                 "BSD-3-Clause"
@@ -2404,7 +2592,7 @@
                     "type": "thanks_dev"
                 }
             ],
-            "time": "2025-09-05T05:47:09+00:00"
+            "time": "2025-11-04T16:30:35+00:00"
         },
         {
             "name": "szepeviktor/phpstan-wordpress",
@@ -2521,30 +2709,38 @@
         },
         {
             "name": "wp-coding-standards/wpcs",
-            "version": "2.3.0",
+            "version": "3.3.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/WordPress/WordPress-Coding-Standards.git",
-                "reference": "7da1894633f168fe244afc6de00d141f27517b62"
+                "reference": "7795ec6fa05663d716a549d0b44e47ffc8b0d4a6"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/WordPress/WordPress-Coding-Standards/zipball/7da1894633f168fe244afc6de00d141f27517b62",
-                "reference": "7da1894633f168fe244afc6de00d141f27517b62",
+                "url": "https://api.github.com/repos/WordPress/WordPress-Coding-Standards/zipball/7795ec6fa05663d716a549d0b44e47ffc8b0d4a6",
+                "reference": "7795ec6fa05663d716a549d0b44e47ffc8b0d4a6",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.4",
-                "squizlabs/php_codesniffer": "^3.3.1"
+                "ext-filter": "*",
+                "ext-libxml": "*",
+                "ext-tokenizer": "*",
+                "ext-xmlreader": "*",
+                "php": ">=7.2",
+                "phpcsstandards/phpcsextra": "^1.5.0",
+                "phpcsstandards/phpcsutils": "^1.1.0",
+                "squizlabs/php_codesniffer": "^3.13.4"
             },
             "require-dev": {
-                "dealerdirect/phpcodesniffer-composer-installer": "^0.5 || ^0.6",
-                "phpcompatibility/php-compatibility": "^9.0",
-                "phpcsstandards/phpcsdevtools": "^1.0",
-                "phpunit/phpunit": "^4.0 || ^5.0 || ^6.0 || ^7.0"
+                "php-parallel-lint/php-console-highlighter": "^1.0.0",
+                "php-parallel-lint/php-parallel-lint": "^1.4.0",
+                "phpcompatibility/php-compatibility": "^10.0.0@dev",
+                "phpcsstandards/phpcsdevtools": "^1.2.0",
+                "phpunit/phpunit": "^8.0 || ^9.0"
             },
             "suggest": {
-                "dealerdirect/phpcodesniffer-composer-installer": "^0.6 || This Composer plugin will sort out the PHPCS 'installed_paths' automatically."
+                "ext-iconv": "For improved results",
+                "ext-mbstring": "For improved results"
             },
             "type": "phpcodesniffer-standard",
             "notification-url": "https://packagist.org/downloads/",
@@ -2561,6 +2757,7 @@
             "keywords": [
                 "phpcs",
                 "standards",
+                "static analysis",
                 "wordpress"
             ],
             "support": {
@@ -2568,7 +2765,13 @@
                 "source": "https://github.com/WordPress/WordPress-Coding-Standards",
                 "wiki": "https://github.com/WordPress/WordPress-Coding-Standards/wiki"
             },
-            "time": "2020-05-13T23:57:56+00:00"
+            "funding": [
+                {
+                    "url": "https://opencollective.com/php_codesniffer",
+                    "type": "custom"
+                }
+            ],
+            "time": "2025-11-25T12:08:04+00:00"
         },
         {
             "name": "yoast/phpunit-polyfills",
diff --git a/index.php b/index.php
index 484de429f..f167948fe 100644
--- a/index.php
+++ b/index.php
@@ -36,15 +36,15 @@
  *
  * @since 1.0.0
  *
- * @param string $class The class name to autoload.
+ * @param string $class_name The class name to autoload.
  *
  * @return boolean Returns TRUE if the class is located. Otherwise FALSE.
  */
-function visualizer_autoloader( $class ) {
+function visualizer_autoloader( $class_name ) {
 	$namespaces = array( 'Visualizer' );
 	foreach ( $namespaces as $namespace ) {
-		if ( substr( $class, 0, strlen( $namespace ) ) === $namespace ) {
-			$filename = dirname( __FILE__ ) . str_replace( '_', DIRECTORY_SEPARATOR, "_classes_{$class}.php" );
+		if ( substr( $class_name, 0, strlen( $namespace ) ) === $namespace ) {
+			$filename = __DIR__ . str_replace( '_', DIRECTORY_SEPARATOR, "_classes_{$class_name}.php" );
 			if ( is_readable( $filename ) ) {
 				require $filename;
 
@@ -66,7 +66,7 @@ function visualizer_launch() {
 	define( 'VISUALIZER_BASEFILE', __FILE__ );
 	define( 'VISUALIZER_BASENAME', plugin_basename( __FILE__ ) );
 	define( 'VISUALIZER_ABSURL', plugins_url( '/', __FILE__ ) );
-	define( 'VISUALIZER_ABSPATH', dirname( __FILE__ ) );
+	define( 'VISUALIZER_ABSPATH', __DIR__ );
 	define( 'VISUALIZER_DIRNAME', basename( VISUALIZER_ABSPATH ) );
 	define( 'VISUALIZER_REST_VERSION', 1 );
 	// if the below is true, then the js/customization.js in the plugin folder will be used instead of the one in the uploads folder (if it exists).
@@ -133,7 +133,7 @@ function visualizer_launch() {
 
 	$vendor_file = VISUALIZER_ABSPATH . '/vendor/autoload.php';
 	if ( is_readable( $vendor_file ) ) {
-		include_once( $vendor_file );
+		include_once $vendor_file;
 	}
 	add_filter( 'themeisle_sdk_products', 'visualizer_register_sdk', 10, 1 );
 	add_filter( 'pirate_parrot_log', 'visualizer_register_parrot', 10, 1 );
@@ -149,7 +149,7 @@ function visualizer_launch() {
 	);
 	add_filter(
 		'visualizer_about_us_metadata',
-		function() {
+		function () {
 			return array(
 				'logo'             => esc_url( VISUALIZER_ABSURL . 'images/visualizer-logo.svg' ),
 				'location'         => 'visualizer',
@@ -164,7 +164,7 @@ function() {
 		add_filter( 'themeisle_sdk_enable_telemetry', '__return_true' );
 		add_filter(
 			'themeisle_sdk_telemetry_products',
-			function( $products ) {
+			function ( $products ) {
 				$already_registered = false;
 
 				$license = get_option( 'visualizer_pro_license_data', 'free' );
diff --git a/phpstan-baseline.neon b/phpstan-baseline.neon
index 814cf6b89..44608ccd7 100644
--- a/phpstan-baseline.neon
+++ b/phpstan-baseline.neon
@@ -295,7 +295,7 @@ parameters:
 			path: classes/Visualizer/Module.php
 
 		-
-			message: '#^Method Visualizer_Module\:\:getDataAs\(\) has parameter \$final with no type specified\.$#'
+			message: '#^Method Visualizer_Module\:\:getDataAs\(\) has parameter \$data with no type specified\.$#'
 			identifier: missingType.parameter
 			count: 1
 			path: classes/Visualizer/Module.php
@@ -2737,7 +2737,7 @@ parameters:
 			path: classes/Visualizer/Render/Sidebar.php
 
 		-
-			message: '#^Method Visualizer_Render_Sidebar\:\:_renderCheckboxItem\(\) has parameter \$default with no type specified\.$#'
+			message: '#^Method Visualizer_Render_Sidebar\:\:_renderCheckboxItem\(\) has parameter \$default_value with no type specified\.$#'
 			identifier: missingType.parameter
 			count: 1
 			path: classes/Visualizer/Render/Sidebar.php
@@ -3415,7 +3415,7 @@ parameters:
 			path: classes/Visualizer/Render/Sidebar/Graph.php
 
 		-
-			message: '#^Parameter \#4 \$default of static method Visualizer_Render_Sidebar\:\:_renderColorPickerItem\(\) expects string, null given\.$#'
+			message: '#^Parameter \#4 \$default_color of static method Visualizer_Render_Sidebar\:\:_renderColorPickerItem\(\) expects string, null given\.$#'
 			identifier: argument.type
 			count: 3
 			path: classes/Visualizer/Render/Sidebar/Graph.php
@@ -3511,7 +3511,7 @@ parameters:
 			path: classes/Visualizer/Render/Sidebar/Linear.php
 
 		-
-			message: '#^Parameter \#4 \$default of static method Visualizer_Render_Sidebar\:\:_renderColorPickerItem\(\) expects string, null given\.$#'
+			message: '#^Parameter \#4 \$default_color of static method Visualizer_Render_Sidebar\:\:_renderColorPickerItem\(\) expects string, null given\.$#'
 			identifier: argument.type
 			count: 1
 			path: classes/Visualizer/Render/Sidebar/Linear.php
@@ -3541,7 +3541,7 @@ parameters:
 			path: classes/Visualizer/Render/Sidebar/Type/ChartJS/Bar.php
 
 		-
-			message: '#^Parameter \#4 \$default of static method Visualizer_Render_Sidebar\:\:_renderColorPickerItem\(\) expects string, null given\.$#'
+			message: '#^Parameter \#4 \$default_color of static method Visualizer_Render_Sidebar\:\:_renderColorPickerItem\(\) expects string, null given\.$#'
 			identifier: argument.type
 			count: 3
 			path: classes/Visualizer/Render/Sidebar/Type/ChartJS/Bar.php
@@ -3577,7 +3577,7 @@ parameters:
 			path: classes/Visualizer/Render/Sidebar/Type/ChartJS/Line.php
 
 		-
-			message: '#^Parameter \#4 \$default of static method Visualizer_Render_Sidebar\:\:_renderColorPickerItem\(\) expects string, null given\.$#'
+			message: '#^Parameter \#4 \$default_color of static method Visualizer_Render_Sidebar\:\:_renderColorPickerItem\(\) expects string, null given\.$#'
 			identifier: argument.type
 			count: 2
 			path: classes/Visualizer/Render/Sidebar/Type/ChartJS/Line.php
@@ -3685,7 +3685,7 @@ parameters:
 			path: classes/Visualizer/Render/Sidebar/Type/ChartJS/Pie.php
 
 		-
-			message: '#^Parameter \#4 \$default of static method Visualizer_Render_Sidebar\:\:_renderColorPickerItem\(\) expects string, null given\.$#'
+			message: '#^Parameter \#4 \$default_color of static method Visualizer_Render_Sidebar\:\:_renderColorPickerItem\(\) expects string, null given\.$#'
 			identifier: argument.type
 			count: 4
 			path: classes/Visualizer/Render/Sidebar/Type/ChartJS/Pie.php
@@ -3841,7 +3841,7 @@ parameters:
 			path: classes/Visualizer/Render/Sidebar/Type/DataTable/DataTable.php
 
 		-
-			message: '#^Parameter \#4 \$default of static method Visualizer_Render_Sidebar\:\:_renderColorPickerItem\(\) expects string, null given\.$#'
+			message: '#^Parameter \#4 \$default_color of static method Visualizer_Render_Sidebar\:\:_renderColorPickerItem\(\) expects string, null given\.$#'
 			identifier: argument.type
 			count: 8
 			path: classes/Visualizer/Render/Sidebar/Type/DataTable/DataTable.php
@@ -4003,7 +4003,7 @@ parameters:
 			path: classes/Visualizer/Render/Sidebar/Type/DataTable/Tabular.php
 
 		-
-			message: '#^Parameter \#4 \$default of static method Visualizer_Render_Sidebar\:\:_renderColorPickerItem\(\) expects string, null given\.$#'
+			message: '#^Parameter \#4 \$default_color of static method Visualizer_Render_Sidebar\:\:_renderColorPickerItem\(\) expects string, null given\.$#'
 			identifier: argument.type
 			count: 8
 			path: classes/Visualizer/Render/Sidebar/Type/DataTable/Tabular.php
@@ -4057,7 +4057,7 @@ parameters:
 			path: classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Area.php
 
 		-
-			message: '#^Parameter \#4 \$default of static method Visualizer_Render_Sidebar\:\:_renderColorPickerItem\(\) expects string, null given\.$#'
+			message: '#^Parameter \#4 \$default_color of static method Visualizer_Render_Sidebar\:\:_renderColorPickerItem\(\) expects string, null given\.$#'
 			identifier: argument.type
 			count: 1
 			path: classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Area.php
@@ -4105,7 +4105,7 @@ parameters:
 			path: classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Bubble.php
 
 		-
-			message: '#^Parameter \#4 \$default of static method Visualizer_Render_Sidebar\:\:_renderColorPickerItem\(\) expects string, null given\.$#'
+			message: '#^Parameter \#4 \$default_color of static method Visualizer_Render_Sidebar\:\:_renderColorPickerItem\(\) expects string, null given\.$#'
 			identifier: argument.type
 			count: 1
 			path: classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Bubble.php
@@ -4153,7 +4153,7 @@ parameters:
 			path: classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Candlestick.php
 
 		-
-			message: '#^Parameter \#4 \$default of static method Visualizer_Render_Sidebar\:\:_renderColorPickerItem\(\) expects string, null given\.$#'
+			message: '#^Parameter \#4 \$default_color of static method Visualizer_Render_Sidebar\:\:_renderColorPickerItem\(\) expects string, null given\.$#'
 			identifier: argument.type
 			count: 5
 			path: classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Candlestick.php
@@ -4453,7 +4453,7 @@ parameters:
 			path: classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Geo.php
 
 		-
-			message: '#^Parameter \#4 \$default of static method Visualizer_Render_Sidebar\:\:_renderColorPickerItem\(\) expects string, null given\.$#'
+			message: '#^Parameter \#4 \$default_color of static method Visualizer_Render_Sidebar\:\:_renderColorPickerItem\(\) expects string, null given\.$#'
 			identifier: argument.type
 			count: 1
 			path: classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Geo.php
@@ -4567,7 +4567,7 @@ parameters:
 			path: classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Pie.php
 
 		-
-			message: '#^Parameter \#4 \$default of static method Visualizer_Render_Sidebar\:\:_renderColorPickerItem\(\) expects string, null given\.$#'
+			message: '#^Parameter \#4 \$default_color of static method Visualizer_Render_Sidebar\:\:_renderColorPickerItem\(\) expects string, null given\.$#'
 			identifier: argument.type
 			count: 1
 			path: classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Pie.php
@@ -4693,7 +4693,7 @@ parameters:
 			path: classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Tabular.php
 
 		-
-			message: '#^Parameter \#4 \$default of static method Visualizer_Render_Sidebar\:\:_renderColorPickerItem\(\) expects string, null given\.$#'
+			message: '#^Parameter \#4 \$default_color of static method Visualizer_Render_Sidebar\:\:_renderColorPickerItem\(\) expects string, null given\.$#'
 			identifier: argument.type
 			count: 14
 			path: classes/Visualizer/Render/Sidebar/Type/GoogleCharts/Tabular.php
@@ -5035,7 +5035,7 @@ parameters:
 			path: classes/Visualizer/Source/Json.php
 
 		-
-			message: '#^Method Visualizer_Source_Json\:\:getNextPage\(\) has parameter \$array with no type specified\.$#'
+			message: '#^Method Visualizer_Source_Json\:\:getNextPage\(\) has parameter \$data with no type specified\.$#'
 			identifier: missingType.parameter
 			count: 1
 			path: classes/Visualizer/Source/Json.php
@@ -5053,7 +5053,7 @@ parameters:
 			path: classes/Visualizer/Source/Json.php
 
 		-
-			message: '#^Method Visualizer_Source_Json\:\:getRootElements\(\) has parameter \$array with no type specified\.$#'
+			message: '#^Method Visualizer_Source_Json\:\:getRootElements\(\) has parameter \$data with no type specified\.$#'
 			identifier: missingType.parameter
 			count: 1
 			path: classes/Visualizer/Source/Json.php
@@ -5065,7 +5065,7 @@ parameters:
 			path: classes/Visualizer/Source/Json.php
 
 		-
-			message: '#^Method Visualizer_Source_Json\:\:getRootElements\(\) has parameter \$parent with no type specified\.$#'
+			message: '#^Method Visualizer_Source_Json\:\:getRootElements\(\) has parameter \$parent_key with no type specified\.$#'
 			identifier: missingType.parameter
 			count: 1
 			path: classes/Visualizer/Source/Json.php
diff --git a/templates/support.php b/templates/support.php
index 31b570b00..07e8c043f 100644
--- a/templates/support.php
+++ b/templates/support.php
@@ -21,17 +21,17 @@ class="dashicons dashicons-cart"></span>More features</a>
 
 	<h2 class="nav-tab-wrapper">
 		<a href="<?php echo esc_url( admin_url( 'admin.php?page=viz-support&tab=help' ) ); ?>"
-		   class="nav-tab <?php echo $active_tab === 'help' ? 'nav-tab-active' : ''; ?>"><?php _e( 'Support', 'visualizer' ); ?></a>
+			class="nav-tab <?php echo $active_tab === 'help' ? 'nav-tab-active' : ''; ?>"><?php _e( 'Support', 'visualizer' ); ?></a>
 		<?php
 		if ( $show_more ) {
 			?>
 		<a href="<?php echo esc_url( admin_url( 'admin.php?page=viz-support&tab=more' ) ); ?>"
-	   class="nav-tab <?php echo $active_tab === 'more' ? 'nav-tab-active' : ''; ?>"><?php _e( 'More Features', 'visualizer' ); ?></a>
+		class="nav-tab <?php echo $active_tab === 'more' ? 'nav-tab-active' : ''; ?>"><?php _e( 'More Features', 'visualizer' ); ?></a>
 			<?php
 		}
 		?>
 		<a href="<?php echo esc_url( admin_url( 'admin.php?page=viz-support&tab=improve' ) ); ?>"
-		   class="nav-tab <?php echo $active_tab === 'improve' ? 'nav-tab-active' : ''; ?>"><?php _e( 'Help us improve!', 'visualizer' ); ?></a>
+			class="nav-tab <?php echo $active_tab === 'improve' ? 'nav-tab-active' : ''; ?>"><?php _e( 'Help us improve!', 'visualizer' ); ?></a>
 	</h2>
 
 	<div class="viz-features-content">