<?php
if ( strlen($_REQUEST['feedURL']) > 0) {
	$feed_url = $_REQUEST['feedURL'];
	require_once('simplepie.inc');
	 
	$feed = new SimplePie();
	$feed->set_feed_url($feed_url);
	$feed->init();
	$feed->handle_content_type();
	if (strlen($_REQUEST['callback']) > 0) {
		echo $_REQUEST['callback'];
		echo '({';
	} else {
		echo '{';
	}
	echo '"feed_title": "' . $feed->get_title() . '", ';
	echo '"feed_permalink": "' . $feed->get_permalink() . '", ';
	echo '"items": [';
	if ( strlen($_REQUEST['num_items']) > 0) {
		$itemCount = $feed->get_item_quantity($_REQUEST['num_items']);
	} else {
		$itemCount = $feed->get_item_quantity(0);
	}
	foreach ($feed->get_items(0, $itemCount) as $item) {
		$id_number ++;
		echo '{';
		echo '"title": "' . $item->get_title() . '",';
		echo '"link": "' . $item->get_permalink() . '"';
		echo '}';
	    if ($id_number != $itemCount) {
	    	echo ',';
	    }
	}
	echo ']';
} else {
	echo '"errormessage" : "Please submit a valid feed URL"';
}
if (strlen($_REQUEST['callback']) > 0) {
	echo '})';
} else {
	echo '}';	
}
?>