Shopp Referrer

shopp_referrer.php

<?php

/*
 * Gets previous page
 *
 * If the previous page is a page outside the site, returns the storefront page.
 *
 * @param $args array Optional Args
 * @return $referrer string
 */
function lordsnet_shopp_referrer( $args = array() ) {
	$referrer = $_SERVER['HTTP_REFERER'];
	
	$parsed_url = parse_url( $referrer );
	echo $parsed_url['host'] . '///';
	if ( false === strpos( $parsed_url['host'], 'lordsnet' ) )
		$referrer = shopp( 'storefront', 'url', 'return=1' );
	
	if ( $args['return'] )
		return $referrer;
	
	echo $referrer;
}