Determine WebSERVER type_PHP tutorial

判断WebSERVER类型

---

function WebServerSpy($ServerURL)    
{
    $filepointer = fsockopen($ServerURL,80,&$errno,&$errstr);
    if(!$filepointer)    
    {
    $WebServer="Error: $errstr ($errno)
";
    }    
    else    
    {
    fputs($filepointer,"GET / HTTP/1.0 ");
    while(!feof($filepointer))    
    {
        $WebServer=fgets($filepointer,4096);
        if (ereg("^Server:",$WebServer))    
        {
        $WebServer=trim(ereg_replace("^Server:","",$WebServer));
        break;
        }
    }
    fclose($filepointer);
    }
    return($WebServer);
}
?>
if ($ServerURL<>"") { $WebServer=WebServerSpy($ServerURL); }
?>





if ($WebServer<>"" and $ServerURL<>"")    
{
    echo("

Server $ServerURL is running $WebServer.

");

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