neverfall

#!/usr/bin/env php
<?php

function restart_web($interface) {
    passthru("ifconfig $interface down");
    passthru("ifconfig $interface up");
    sleep(5);
}

function ping($host) {
    return (boolean) @fsockopen($host, 80, $errno, $errstr, 10);
}

while(1) {
    sleep(2);
    if (!ping("www.google.co.uk")) {
        echo "Looks like the connection is down. Let me restart it for you...\n";
        restart_web("en0");
        continue;
    }
    echo "Looking good\n";
}