A simple script I create in the past to monitoring my blog/site

phttping.php

<?php 

$arquivo = "$HOME/logs/uptime";
$abre = fopen($arquivo,"a+");


$ip = "mysite.com.br";

$comando = "/arpa/af/c/cerebro/bin/commands/httping -c 1 -g http://".$ip;
$saida = shell_exec($comando);

$texto = "Site : $ip";

if ( ereg("1 ok",$saida) ) {
$texto =  $texto. " you site is up [ ";
} else {
$texto = $texto." you site is down [ ";
}

$texto = $texto;

$data = date(r);

$texto = $texto.$data." ] \n"; 

fwrite($abre,$texto);
fclose($abre);

?>