Check if images from Google Shopping Feed exist

gistfile1.php

<?php

$googleShoppingXml = file_get_contents('http://www.url.com/googleshopping.xml');

preg_match_all('~(http://[^\s<]+jpg)~si', $googleShoppingXml, $imagesUrls);

foreach ($imagesUrls[0] as $imageUrl) {
	$responseCode = get_headers($imageUrl, 1)[0];
	
	if (stristr($responseCode, '404') !== false)
		echo "Image doesn't exists: " . $imageUrl . "\n";
	else
		echo "OK " . $imageUrl . " - " . $responseCode . "\n";
}