Check Link

hyabusa

Hey, For part of a script im writing i need it to check if links are working or not. At the moment i have it just using fopen, but the problem is this takes a while to do say 20 links. Is there anyway to do like a ping on them but obviously not a ping since that is not specificic to a page.

Cheers very much for any help given.

Thanks, Craig

Floodboy

fsockopen

hyabusa

thanks, i hadn't realised you could use fsock for an actuall link.

I have just tried something out of a book i have to see if it would work, but im having problems with HTTP response codes.
Basically if a link doesn't exist i get 404 which is great but when it does exist i get 200 and 400.
Now thats not right as 400 means Bad request. Anyone got any idea why this might be?

I will post the link to it running and the code below.

http://62.31.88.74/link.php

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
        "http://www.w3.org/TR/2000/REC-xhtml1-20000126/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
	<title>Validate URLs</title>
</head>
<body>
<?php


$db_connection = mysql_connect ("xxxxxxx", "xxxxx", "xxxxx") OR die (mysql_error());  

$db_select = mysql_select_db ("tester") or die (mysql_error());

// This function will try to connect to a URL.
function check_url ($url) { 

// Break the URL down into its parts.
$url_pieces = parse_url ($url);      
$path = ($url_pieces['path']) ? $url_pieces['path'] :  "/"; 
$port = ($url_pieces['port']) ? $url_pieces['port'] : 80; 

// Connect.
if ($fp = fsockopen ($url_pieces['host'], $port, &$errno, &$errstr, 5)) { 

	fputs ($fp, "HEAD $path HTTP/1.1\r\n\r\n"); 
	fputs($fp, "HOST: $url_pieces[host]\r\n");
	fputs($fp, "CONNECTION: close\r\n\r\n");
	$data = fgets ($fp,128); 
	fclose($fp); 
	$array = explode (" ", $data); 
	return $array[1]; // Return the HTTP code.

} else {
	return $errno; // Return the error message.
}

} 

// Query the database.
$query = "select * from php_links order by id";
$query_result = mysql_query ($query);

// Create a table.
echo '<table border="1" cellspacing="2" cellpadding="2" align="center">';
echo '<tr><td align="left"><b>Site Name</b></td><td align="left"><b>URL</b></td><td align="left"><b>HTTP Code</b></td></tr>';

// Check each URL.
while ($row = mysql_fetch_object ($query_result)) {
	$check = check_url ($row->url);
	echo '<tr><td align="left">' . $row->name . '</td><td align="left"><a href="'. $row->url . '" target="_new">' . $row->url . '</a></td><td align="left">' . $check . '</td></tr>';
} 
?>
</table>
</body>
</html>

Cheers very much, Craig