View difference between Paste ID: ctGpKUJB and kEaPUtVH

 <?php
 
 function video_filter_function() {
     check_ajax_referer( 'my_nonce' );
 
     $date = sanitize_text_field( $_POST['date'] );
     $date = ( $date === 'ASC' ) ? 'ASC' : 'DESC'; // Make sure it's a valida date
 
     $args = array(
         'post_type' => 'videos',
         'orderby'   => 'date',
         'order'     => $date,
     );
 
     // Add to query only if it's not empty
     if ( ! empty( $_POST['categoryfilter'] ) ) {
         $categoryfilter = sanitize_text_field( $_POST['categoryfilter'] );
 
         $args['tax_query'] = array(
             array(
                 'taxonomy'  => 'category',
                 'field'     => 'id',
                 'terms'     => $categoryfilter,
             ),
         );
     }
 
     // Add to query only if it's not empty
     if ( ! empty( $_POST['description'] ) ) {
         $description = sanitize_text_field( $_POST['description'] );
 
         $args['meta_query'] = array(
             array(
                 'key'       => 'video_description',
                 'value'     => $description,
                 'compare'   => 'LIKE',
             ),
         );
     }
 
     $query = new WP_Query( $args );
 
     if ( $query->have_posts() ) :
         while( $query->have_posts() ) : $query->the_post();
     ?>
 
         <div class="video-grid-item">
             <h2> <?php the_field('video_title'); ?></h2>
             <p> <?php the_field('video_description'); ?></p>
             <iframe src="https://player.vimeo.com/video/<?php the_field( 'vimeo' ); ?>" width="640" height="640" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
         </div>
 
 <?php
         endwhile;
         wp_reset_postdata();
     else :
         echo 'No posts found';
     endif;
 
     die; // Search for wp_send_json() to check how to use the JSON away
 }
 
 
 add_action( 'wp_ajax_myfilter', 'video_filter_function' );
 add_action( 'wp_ajax_nopriv_myfilter', 'video_filter_function' );