trys

$total = 0;
for ( $i = 0; $i < 1000; $i++ )
	$total += $i % 5 === 0 || $i % 3 === 0 ? $i : 0;

echo $total;

trys

$( '.wp-editor-wrap' ).each( function () {
	var id = $( this ).parent().data( 'id' );

	tinyMCE.get( id ).remove();
	switchEditors.go( id , 'tmce' );
});

trys

<?php
$args = array(
	'post_type' => 'post'
);
$post_query = new WP_Query( $args );
if ( $post_query->have_posts() ) {
	while ( $post_query->have_posts() ) {
		$post_query->the_post();
		get_template_part( 'content', get_post_type() );
	}