获取外部网站元标记与fb调试器

I'm trying to retrieve meta tags of an external website.

In the view source, I can't see these tags and the only way to get them is by inspecting the elements. However, if I debug the url with facebook debugger, all meta tags are there just fine.

I'm struggled into finding a way to get those tags as a php variables.

The URL: https://play.anghami.com/song/45345900 How FB Scraper sees it: https://developers.facebook.com/tools/debug/echo/?q=https%3A%2F%2Fplay.anghami.com%2Fsong%2F45345900

You can try this code, this code pulls entire webpage, but you can optimize it the way you like.

 $ch = curl_init(); 
 curl_setopt($ch, CURLOPT_HTTPHEADER,array('Content-Type: text/plain'));
 curl_setopt($ch, CURLOPT_URL, 'https://play.anghami.com/song/45345900'); 
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
 $output = curl_exec($ch); 
 curl_close($ch);  
 header('Content-Type: text/plain');
 echo $output;
 exit;