- var_dump: documentation ( source)
- strpos: documentation ( source)
<?php
$path = 'https://s3-eu-west-1.amazonaws.com/assets.moovly.com/converted/video/video-render_a500b784-8c23-4eea-bbc3-475f0a53554c-1486391591961.mp4';
var_dump(strpos($path, 'https://'));