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function op111_wpcf7_main_add_class($output, $tag, $atts, $m) {
    if ($tag === 'contact-form-7' && $atts['title'] === 'Main') {
        $output = str_replace(
            'wpcf7-submit',
            'wpcf7-submit wpcf7-submit-main',
            $output
        );
    }

    return $output;

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document.addEventListener( 'wpcf7mailsent', function( event ) {
    if(event.detail.contactFormId == 'wpcf7-f3112-o2') {
    //put your code here 
    }
}, false );

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More info: https://www.ibenic.com/programmatically-change-yoast-seo-open-graph-meta/

/**
* Function to add hooks and filter out the Yoast SEO Open Graph Meta Tags
*/
function change_yoast_seo_og_meta() {
    add_filter( 'wpseo_opengraph_title', 'change_title' );
    add_filter( 'wpseo_opengraph_desc', 'change_desc' );
    add_filter( 'wpseo_opengraph_url', 'change_url' );
    add_action( 'wpseo_add_opengraph_images', 'add_images' );

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// Don't disable on dev
if ( ! defined( 'WP_DEBUG' ) || ! WP_DEBUG ) {
	// Disable core update checking
	add_filter( 'pre_site_transient_update_core', create_function( '$a', "return null;" ) );
	remove_action( 'admin_init', '_maybe_update_core' );
	remove_action( 'wp_version_check', 'wp_version_check' );
	// Remove the updates menu item
	function yell_remove_update_menu() {
		 remove_submenu_page( 'index.php', 'update-core.php' );
	}

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wp_register_script( 'dummy-handle-footer', '', [], '', true );
wp_enqueue_script( 'dummy-handle-footer'  );
wp_add_inline_script( 'dummy-handle-footer', 'console.log( "footer" );' );

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<?php

// Register REST API endpoints
class GenerateWP_Custom_REST_API_Endpoints {

	/**
	 * Register the routes for the objects of the controller.
	 */
	public static function register_endpoints() {
		// endpoints will be registered here

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/**
 * Remove type attribute from scripts
 */
public function clean_script_tag($input) {
    if ( ! is_admin() ) {
        $input = str_replace( "type='text/javascript' ", '', $input );
        return str_replace( "'", '"', $input );
    }
    return $input;
}

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/**
 * Prevent update notification for plugin
 * http://www.thecreativedev.com/disable-updates-for-specific-plugin-in-wordpress/
 * Place in theme functions.php or at bottom of wp-config.php
 */
 function disable_plugin_updates( $value ) {
    $pluginsToDisable = [
        'plugin-folder/plugin.php',
        'plugin-folder2/plugin2.php'
    ];

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/**
 * Clean metaboxes
 */
add_action('admin_init', 'mp_set_user_metaboxes');
function mp_set_user_metaboxes($user_id=NULL) {
	$meta_key['hidden'] = 'metaboxhidden_dashboard';
	$meta_value = array(
		'dashboard_incoming_links',
		'wpseo-dashboard-overview',
		'dashboard_activity',

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if( isset($this->data['file']) ) {

  $allowed_types = array('image/png', 'image/jpg', 'application/pdf', 'application/vnd.openxmlformats-officedocument.wordprocessingml.document', 'xls', 'application/msword', 'application/vnd.ms-excel', 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' );

  if ( in_array($this->data['file']['type'], $allowed_types) ) {

    //move temp file
    $upload_dir = wp_upload_dir();
    $upload_dir = $upload_dir['path'];