<?php
$url = "http://c...content-available-to-author-only...l.mp4?expire=1635939248&token=7022dbc14de970c7uc040ac4f35058f0";

// parts
$parts = parse_url($url);
print_r($parts);

// query
parse_str($parts["query"], $query);
print_r($query);
?>