SoYouStart Availability Checker (Mandrill App)

check-availability.php

<?php
/*
 * Script to check SoYouStart availability, based on http://www.tienle.com/2014/09-03/script-check-soyoustart-availability.html
 */

define('CHECK_URL',             'http://ws.ovh.com/dedicated/r2/ws.dispatcher/getAvailability2');
define('NOTIFICATION_EMAILS',   'YOUR_EMAIL@DOMAIN.COM'); // Comma separated list of notifaction email address
define('SYSTEM_EMAIL',          '0'); // 1 = enabled local smtp system
define('MANDRILL',              '1'); // 1 = enable email through mandrill api, require an account on https://mandrillapp.com/
define('MANDRILL_API',          'YOUR_MANDRILL_API_KEY'); // Enter your Mandrill App API Key here
define('TEMP_PREVIOUS_MSG_FILE',        dirname(__FILE__). '/sys-avail-cache.txt');

$f = file_get_contents(CHECK_URL);

$a = json_decode($f);
$avail = $a->answer->availability;

$str_avai = '';
$zone_to_check = array('143sys10','143sys11'); //Replace with your choice of servers to check on

foreach($avail as $s) {
  if( in_array($s->reference, $zone_to_check)) {
    $z = $s->zones;
    foreach($z as $zone) {

// Please check your best zone here http://proof.ovh.net/
      if($zone->availability!=='unavailable' && strtolower($zone->zone) == 'bhs' || $zone->availability!=='unavailable' && strtolower($zone->zone) == 'gra' || $zone->availability!=='unavailable' && strtolower($zone->zone) == 'rbx' || $zone->availability!=='unavailable' && strtolower($zone->zone) == 'sbg')
        {
        $str_avai .= $s->reference . " is " . $zone->availability . " in " . $zone->zone . " - Purchase Link: https://eu.soyoustart.com/en/cgi-bin/newOrder/order.cgi?hard=" . $s->reference . "\n"; // Replace link with your country's soyoustart site link
      }
    }
  }
}

//-- write to cache file to avoid repeated notifications
$previous_message = @file_get_contents(TEMP_PREVIOUS_MSG_FILE);

if ($str_avai != ''){
    if ($str_avai != $previous_message){
        if (defined('NOTIFICATION_EMAILS')){
                $emails = explode(',',NOTIFICATION_EMAILS);
        foreach ($emails as $email)
                        sendNotificationEmail($email, $str_avai);
        }
    $ff = fopen(TEMP_PREVIOUS_MSG_FILE, "w");
        fwrite($ff, $str_avai);
        fclose($ff);
    }
} else {
        $ff = fopen(TEMP_PREVIOUS_MSG_FILE, "w");
        fwrite($ff, '-');
        fclose($ff);
}

/**
 * Send email via MANDRILL APP
 */
function sendNotificationEmail($to, $msg){

if (defined('MANDRILL_API') && MANDRILL == 1) {
        require dirname(__FILE__) . '/vendor/autoload.php';
        $mandrill = new Mandrill(MANDRILL_API);

        $date = new DateTime('now', new DateTimeZone('UTC')); // replace your timezone here

        $message = array(
        'text' => $msg,
        'subject' => "SoYouStart Availability - " . $date->format('Y-m-d H:i:s'),
        'from_email' => "noreply@yourdomain.com",
        'from_name'  => "SYS Availability Checker",
        'to' => array(array('email' => $to)),
        'track_opens' => true,
        );

        $results = $mandrill->messages->send($message);
}
if ( SYSTEM_EMAIL == 1 ) {
        $mail = mail($to, $message->subject, $msg);
}
        return ;
}