note 61917 added to function.parse-url

I needed to get information about the real URL, because some URL are just redirects to the real one. This function here tracks down the real URL as long as it gets redirects (errorcode 301,302, 303, 305 or 307) as response. In this example i resolve my homepage www.tyron.at which redirects to a subdirectory. $real_url = ResolveURL("http://www.tyron.at"); echo "<pre>"; print_r(parse_url($real_url)); function ResolveURL($url) { $info = parse_url($url); //echo "url: '$url'<br><pre>"; //print_r($info); $fp = fsockopen($info['host'],80); if($fp) { $path = $info['path']; if(!strlen($path)) $path = "/"; if(strlen($info['query'])) $path.="?".$info['query']; $out = "GET $path HTTP/1.1\r\n"; $out .= "Host: ".$info['host']."\r\n"; $out .= "User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.8) Gecko/20050511 Firefox/1.0.4\r\n"; $out .= "Connection: Close\r\n\r\n"; fwrite($fp, $out); if(ereg("HTTP/1.1 30(1|2|3|5|7)",$resp = fgets($fp,512))) { while (!feof($fp)) { if(preg_match("/Location: (.*)$/",$line=fgets($fp, 1024),$matches)) $url = ResolveURL(chop($matches[1])); } } //echo $resp; fclose($fp); } return $url; } ---- Server IP: 80.78.242.21 Probable Submitter: 194.183.130.253 (proxied: 1.1 KKV-S08) ---- Manual Page -- http://www.php.net/manual/en/function.parse-url.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+61917 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+61917&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+61917&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+61917&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+61917&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+61917&report=yes&reason=non-english Delete: already in docs -- http://master.php.net/manage/user-notes.php?action=delete+61917&report=yes&reason=already+in+docs Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+61917&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+61917&report=yes Search -- http://master.php.net/manage/user-notes.php