Parsing the incoming request in PHP
<p>If the incoming PHP possible requests can be the following</p>

<p>1)http://wwww.test.com/api.php?device_id=xxxx&amp;user_name=xxxx&amp;pass_word=xxxx&amp;num_request=xxxx&amp;num_site=xxxx;</p>

<p>how do I extract the user_name field from the above in my api.php code?</p>
