Get knob id

The Get button id has two php buttons (no form) on the first one) click a button to enter the second php. The second php will perform different operations based on the different buttons. how can I obtain the id of the clicked button & nbsp; in the second php?
There are two php
There are several buttons (no form) on the first one. click a button to enter the second php
The second php executes different operations based on the buttons clicked.

How can I obtain the clicked button id in the second php file? share the PHP button id:
------ Solution --------------------
It can be passed in this way.

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------解决方案--------------------
用ajax传递值