Get Custom Image

get-image.php

<?php 

/**
 * This function will return all the image data (id, url)
 * @param $post_id int The post id.
 * @param $name string the name of your custom field you used when creating the field.
 *
 * @return mixed
 */
function get_custom_upload( $post_id, $name ) {
	$key = sprintf( '%s-hidden-field', $name );
	return get_post_meta( $post_id, $key, true );
}

/**
 * This function will all return the image url.
 * @param $post_id int The post id.
 * @param $name string the name of your custom field you used when creating the field.
 *
 * @return mixed
 */
function get_custom_upload_url($post_id, $name) {
	$image_data = get_custom_upload( $post_id, $name );
	if ( ! empty( $image_data ) ) {
		return $image_data['src'];
	}

	return false;
}