当我转到wp customizer时，我想编辑名称popular 和cat\\U id=21

<小时>

<div class="p_list"><h2><span>popular</span></h2>   
    <?php $first = true; ?> <?php $cat_id = 21;
$latest_cat_post = new WP_Query( array(\'posts_per_page\' => 4, \'category__in\' => array($cat_id)));
if( $latest_cat_post->have_posts() ) : while( $latest_cat_post->have_posts() ) : $latest_cat_post->the_post();  ?>