[php] Bestaat de url?

Ik zoek een scriptje waarmee je kunt controleren of de url die is ingevoerd wel werkend is. Zoals op downforeveryoneorjustme.com Op google kan ik geen werkenden vinden. Ik wil graag dat het word gecheckt met een function. Als iemand zon function kan vinden/maken red ik me er verder wel mee.

[COLOR= #0000BB]<?php[/COLOR]

[COLOR= #FF8000]//Controleren of er een post is gedaan:[/COLOR]
[URL="http://www.php.net/if"]if[/URL] [COLOR= #007700]([/COLOR][URL="http://www.php.net/isset"]isset[/URL][COLOR= #007700]([/COLOR][COLOR= #0000BB]$_POST[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]submit[/COLOR][COLOR= #007700]]))
{[/COLOR]

    [COLOR= #FF8000]//Controleren of pagina opgevraagd kan worden ZONDER errors:[/COLOR]
    [URL="http://www.php.net/if"]if[/URL] [COLOR= #007700](@[/COLOR][URL="http://www.php.net/file_get_contents"]file_get_contents[/URL][COLOR= #007700]([/COLOR][COLOR= #0000BB]$_POST[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]url[/COLOR][COLOR= #007700]]))
    {[/COLOR]
        
        [COLOR= #FF8000]//Weergeven dat site online is[/COLOR]
        [URL="http://www.php.net/echo"]echo[/URL] [COLOR= #DD0000]Site is online[/COLOR][COLOR= #007700];[/COLOR]
        
    [COLOR= #FF8000]//Site is waarschijnlijk niet online:[/COLOR]
    [COLOR= #007700]}[/COLOR][URL="http://www.php.net/else"]else[/URL][COLOR= #007700]{[/COLOR]
        
        [COLOR= #FF8000]//Weergeven dat site offline is:[/COLOR]
        [URL="http://www.php.net/echo"]echo[/URL] [COLOR= #DD0000]Site is offline[/COLOR][COLOR= #007700];
        
    }[/COLOR]

[COLOR= #FF8000]//Er is geen post gedaan dus formulier weergeven:[/COLOR]
[COLOR= #007700]}[/COLOR][URL="http://www.php.net/else"]else[/URL][COLOR= #007700]{[/COLOR]
    
    [URL="http://www.php.net/echo"]echo[/URL] [COLOR= #DD0000]<form action="" method="post">
    Url:<br />
    <input type="text" name="url" /><br />
    <input type="submit" name="submit" value="CHECK!" />[/COLOR][COLOR= #007700];

}[/COLOR]

?>

Uhm...

Google -> php ping check
php ping check -> eerste link

Uitkomst:

[COLOR= #0000BB]<?php[/COLOR] 

[COLOR= #FF8000]// Function to check response time[/COLOR]
[COLOR= #007700]function[/COLOR] pingDomain[COLOR= #007700]([/COLOR][COLOR= #0000BB]$domain[/COLOR][COLOR= #007700]){[/COLOR]
    [COLOR= #0000BB]$starttime[/COLOR] [COLOR= #007700]=[/COLOR] [URL="http://www.php.net/microtime"]microtime[/URL][COLOR= #007700]([/COLOR]true[COLOR= #007700]);[/COLOR]
    [COLOR= #0000BB]$file[/COLOR]      [COLOR= #007700]=[/COLOR] [URL="http://www.php.net/fsockopen"]fsockopen[/URL] [COLOR= #007700]([/COLOR][COLOR= #0000BB]$domain[/COLOR][COLOR= #007700],[/COLOR] [COLOR= #0000BB]80[/COLOR][COLOR= #007700],[/COLOR] [COLOR= #0000BB]$errno[/COLOR][COLOR= #007700],[/COLOR] [COLOR= #0000BB]$errstr[/COLOR][COLOR= #007700],[/COLOR] [COLOR= #0000BB]10[/COLOR][COLOR= #007700]);[/COLOR]
    [COLOR= #0000BB]$stoptime[/COLOR]  [COLOR= #007700]=[/COLOR] [URL="http://www.php.net/microtime"]microtime[/URL][COLOR= #007700]([/COLOR]true[COLOR= #007700]);[/COLOR]
    [COLOR= #0000BB]$status[/COLOR]    [COLOR= #007700]=[/COLOR] [COLOR= #0000BB]0[/COLOR][COLOR= #007700];[/COLOR]

    [URL="http://www.php.net/if"]if[/URL] [COLOR= #007700](![/COLOR][COLOR= #0000BB]$file[/COLOR][COLOR= #007700])[/COLOR] [COLOR= #0000BB]$status[/COLOR] [COLOR= #007700]= -[/COLOR][COLOR= #0000BB]1[/COLOR][COLOR= #007700];[/COLOR]  [COLOR= #FF8000]// Site is down[/COLOR]
    [URL="http://www.php.net/else"]else[/URL] [COLOR= #007700]{[/COLOR]
        [URL="http://www.php.net/fclose"]fclose[/URL][COLOR= #007700]([/COLOR][COLOR= #0000BB]$file[/COLOR][COLOR= #007700]);[/COLOR]
        [COLOR= #0000BB]$status[/COLOR] [COLOR= #007700]= ([/COLOR][COLOR= #0000BB]$stoptime[/COLOR] [COLOR= #007700]-[/COLOR] [COLOR= #0000BB]$starttime[/COLOR][COLOR= #007700]) *[/COLOR] [COLOR= #0000BB]1000[/COLOR][COLOR= #007700];[/COLOR]
        [COLOR= #0000BB]$status[/COLOR] [COLOR= #007700]=[/COLOR] [URL="http://www.php.net/floor"]floor[/URL][COLOR= #007700]([/COLOR][COLOR= #0000BB]$status[/COLOR][COLOR= #007700]);
    }[/COLOR]
    [URL="http://www.php.net/return"]return[/URL] [COLOR= #0000BB]$status[/COLOR][COLOR= #007700];
}[/COLOR]
?>

http://www.phptoys.com/e107_plugins/content/content.php?content.41

Ik heb die van Milan wat aangepast en hij werkt. Beide bedankt iig.