Get WordPress Featured Image URL

wp-featured-image-url.php

<?php
/* get featured image url function */
function mdw_featured_img_url( $mdw_featured_img_size ) {
	$mdw_image_id = get_post_thumbnail_id();
	$mdw_image_url = wp_get_attachment_image_src( $mdw_image_id, $mdw_featured_img_size );
	$mdw_image_url = $mdw_image_url[0];
	return $mdw_image_url;
}
?>