Hi,

I have this link validation script that I got from some site. It works fine in testing enviornment i.e localhost, but when I upload it to my shared hosting account it did'nt work, here is the script,

function is_link_exist($url)
{
$host = parse_url($url, PHP_URL_HOST);
$path = parse_url($url, PHP_URL_PATH);

if (empty($path)) {
$path = "/";
}

/* build request headers
$reqh = "HEAD $path HTTP/1.1\r\n"
. "Host: $host\r\n"
. "Connection: Close\r\n\r\n";

$fp = @fsockopen($host, 80, $errno, $errmsg, 30);

if (!$fp) {
print "Sorry unable to connect.";
exit;
}

/* send request headers
fwrite($fp, $reqh);

/* read response
while(!feof($fp)) {
$resh .= fgets($fp, 4096);
}
fclose($fp);

/* get http status
$firstline = substr($resh, 0, strpos($resh, "\r\n"));
list($proto, $stat, $msg) = explode(" ", $firstline);

if ($stat == 200) {
return true;
}
else {
return false;
}
}

It prints out the "Sorry unable to connect" message, can any body help me out, or anybody has a working script?

remove the @ from $fp = @fsockopen($host, 80, $errno, $errmsg, 30); so you can see the error message

Most likely that sockets functions are disabled on your hosting. Try using curl extension.

Thanks mtishetsky,

I think so socket functions are disabled. Can you help me with curl extension. How to verify link using curl extensions? I googled but all the scripts I found use socket function to verfy links.

Thanks in advance.

PHP Code:

$ch = curl_init($url);
curl_setopt($ch, CURLOPT_NOBODY, 1);
curl_setopt($ch, CURLOPT_HEADER, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$res = curl_exec($ch);

if (preg_match('! 200 !m', $res)) {
   $ok = 1;
} 


Something like that. Unfortunately curl cannot make http HEAD requests so you will have to pull the whole page.