Embed youtube vidéos #wp

wp-youtube-embed.php

<?php
/**
 * Responsive Youtube embeds.
 *
 * Adds bootstrap responsive embed markup and classes and avoid showing related
 * videos at the end of the videos.
 */
add_filter( 'embed_oembed_html', function( $html, $url, $attr, $post_ID ) {
    if ( false !== stripos( $html, '<iframe ' ) && false !== stripos( $html, '.youtube.com/embed' ) ) {
        //don't show related videos
        $html = str_replace('?', '?rel=0&', $html);
        $html = sprintf('<div class="embed-responsive embed-responsive-16by9">%s</div>', $html);
    }

    return $html;
}, 10, 4);