Custom wordpress query

gistfile1.txt

<?php 
	$post_args = array(
		'post_type' => 'video',
		'post_status' => 'publish',
		'posts_per_page' => '0',
		'meta_key' => 'bs_video_featured',
      		'meta_value' => 1 
      		);
	$post = new WP_Query( $post_args );							
	if($post->have_posts()){
		while($post->have_posts()){ $post->the_post();
			$url;
				if ( has_post_thumbnail() ) {
					$thumb = wp_get_attachment_image_src( get_post_thumbnail_id(), 'large');
					$url = $thumb['0'];
				} else {
					$url = 'http://placehold.it/287x168/';
					}
				echo $url;
				}
			}
		wp_reset_query();
?>

This is a gist that makes a database connection and then pulls in the featured image's url.