这在PHP中意味着什么？ [关闭]

Question

I'm php newbie. I'm try and learn php from my company project, but I really dont know what is the meaning of the below.

<?php
$channel = $channel ;
$live_channels = $live_channels ;
$octo_link = $octo_link;
$payment_status= $payment_status ;
$is_programme_on = $is_programme_on;
$cc = $cc;
$member_profile = $member_profile ;
$nielsen_data = $nielsen_data ;

Answer 1

It means nothing. It's just assigning a bunch of variables to themselves.