alvarodelera

function copyExcerptInMetaDesc(){
    $posts = get_posts(array(
        'numberposts' => -1,
        'fields' => 'ids',
        'post_type' => array('post')
    ));

    foreach( $posts as $postId ){
        if(!get_post_meta( $postId, '_yoast_wpseo_metadesc', false )){
            $excerpt = get_the_excerpt($postId);