- file_get_contents: documentation ( source)
- json_decode: documentation ( source)
<?php
$json = json_decode(file_get_contents("http://xlukeestvx.api.channel.livestream.com/2.0/thumbnail.json?id=flv_92609a8d-afa6-4832-a8b2-ac4dc2925f4b"));
echo $json->data->thumbnail->url;