Script scan photo on dir

scdir.php

<?
$patch=$_SERVER["DOCUMENT_ROOT"]."/bitrix/script foto/News foto/".$dt."/".$nub."/";
		$source = str_replace($_SERVER["DOCUMENT_ROOT"], "/", $patch);
		$f = scandir($patch);
		foreach ($f as $file){ 
			if (!(preg_match('/\.(jpg)/', $file) || preg_match('/\.(JPG)/', $file))) {
				$key = array_search($file, $f);
				if ($key !== false){
					 unset($f[$key]);		
					 
				} 	
			} else {
					$html.='<a href="'.$source.''.$file.'" rel="lightbox[roadtrip]" ><img src="'.$source.'small/'.$file.'" border="0"  /></a> ';
				}	
		} 
?>