Think my current page url is: http://example.com/id=10
In this this page has link to go other page, I want to pass current URL as a query string like this:
http://example.com/about-us/?edit=1&return=http://example.com/id=10
in PHP
http://example.com/about-us/?edit=1&return=<?php echo $_SERVER['QUERY_STRING'] ?>
but this is not working, could anyone help me to do this.