fopen() problems with not existent sites

[graziano]

If I execute ..

<?php

$domain="yahoo.com";
         $churl = @fopen("http://"."$domain",'r');
         if (!$churl) {
            echo "$domain does NOT exist";
         }else{
            echo "$domain exists";
         }
@fclose($churl);

?>

I receive yahoo.com exists ...
then if I execute ...

<?php

$domain="ya7h12oo12424.com";
         $churl = @fopen("http://"."$domain",'r');
         if (!$churl) {
            echo "$domain does NOT exist";
         }else{
            echo "$domain  exists";
         }
@fclose($churl);

?>

... inserting a not registered domain name I continue to
receive ya7h12oo12424.com exists ......but it's not true !

Anyone can explain me why and what to do solve the problem ?
Thank you

[graziano]

🙁

[jonno4php]

Hiya, I'm no expert but I'd first of all get rid of the @ sign which is suppressing the error output from the function, then PHP may be able to give you a clue about what's going wrong.

Then I'd consider using these functions that a little surfing revealed here http://www.php.net/manual/en/function.file-exists.php

Function url_header returns the headers for that url, and url_exists is true if exists and false otherwise.

function url_header($url) {
$url = preg_replace('#^http:#i', '', $url);
if (preg_match('#^//#', $url)){
list(,,$domain, $file) = explode('/', $url, 4);
$file = "/$file";
} else {
$file = $url;
if (! preg_match('#^/#', $file)) $file = "/$file";
$domain = $_SERVER[HTTP_HOST];
}
$fid = fsockopen($domain, 80);
if (! $fid) return "Host not responding";
fputs($fid, "HEAD $file HTTP/1.0\r\nHost: $domain\r\n\r\n");
$head = fread($fid, 4096);
fclose($fid);
echo "
\n<pre>\n$head<pre>";
return $head;
}

function url_exists($url) {
return preg_match('#^{HTTP/.*\s+200\sOK\s#i',} url_header($url));
}

There are restrictions, I suggest you read all the user comments.

Hope this helps some.

John.