how querylist phantomjs simulates the mobile phone to grab the mobile page. When the destination URL returns, it indicates that the flash plug-in is not installed, and only the simulated mobile phone useragent can capture the playback address.

<?php
 ini_set("display_errors", "On");
require "vendor/autoload.php";
use QL\QueryList;
use QL\Ext\PhantomJs;

$ql = QueryList::getInstance();

$ql->use(PhantomJs::class,"/var/www/html/bin/phantomjs");

$ql->use(PhantomJs::class,"/var/www/html/bin/phantomjs","browser");
$playurl = $ql->browser($_GET["url"])->find("video")->src;
?>