Помогите пожалуйста с preg_match_all

<?php 
set_time_limit(2000);
$url = "http://test1.ru/one_site.php";
$text=file_get_contents($url);
if ($c=preg_match_all ("/<a href=[\'\"](.*?)[\'\"]/", $text , $title)) 
{
$x=1;
$i=0;
while($x!="") {
$x=$title[1][$i];
$t=$tim[1];
if ($x!="") {
$urql = $x;
$txt = file_get_contents($urql);
preg_match_all ("/<iframe src=[\'\"](.*?)[\'\"]/", $txt , $tim ); 

$teststr = $x;
$turl=file_get_contents($teststr);
$search = '</iframe>';
$pos = strpos($turl, $search);

if ($pos === false) {
echo "";
} else {
echo '<div><a id="url" href="' . $teststr . '">' . $teststr . '</a><a id="video" href="' . $t . '">' . $t . '</a></div><br />';
}
}
$i++;
}
}
?>

preg_match_all ("/<iframe src=[\'\"](.*?)[\'\"]/", $txt , $tim );