<?php

$json = file_get_contents('https://ws.ovh.com/dedicated/r2/ws.dispatcher/getAvailability2?callback=Request.JSONP.request_map.request_0');

//Request.JSONP.request_map.request_0(
//echo '<pre>';
//print_r(json_decode(substr($json, 36, -2), true));
$res = json_decode(substr($json, 36, -2), true);
//echo '</pre>';

foreach($res['answer']['availability'] as $server)
{
if ($server['reference'] == '150sk10')
{
echo '<pre>';
print_r($server);
echo '</pre>';
}
}