<?php

function ping($ip){

    error_reporting(0);

    if (!isset($ip) || $ip == null || $ip == "") { $status = "You didn't enter an IP/hostname."; } else {

    if ($ip == "127.0.0.1" || $ip == "localhost")
    { $status = "Be serious. I'm not going to ping myself, am I? Use me constructively, or get the fuck out."; }
    else {

    $sttime    = microtime(true);
    $connect   = fsockopen ($ip, 80, $errno, $errstr, 10);
    $sptime    = microtime(true);
    $status    = 0;

    if (!$connect) { $status = -1; } // IP/host is not available
    else {
        fclose($connect);
        $status = ($sptime - $sttime) * 1000;
        $status = floor($status);
    }}}

    if (is_string($status)) { $result = "$status"; }
    elseif ($status != -1) { $result = "$ip is active, with ping of " . $status . " ms!"; }
    else { $result = "$ip was unreachable!"; }

    return $result;
}

// USAGE
// echo ping(*the IP to ping*);

?>