How to get full referrer url in php 0

To get referrer url, we are going to use $_SERVER variable called HTTP_REFERER.

In some cases we need to check, this page redirected from where? To fill up that "where" we should use  $_SERVER[HTTP_REFERER].

NOTE:

• If users use a bookmark or directly visit your site by manually typing in the URL, HTTP_REFERER will be empty.
• If the users are posting to your page programatically (CURL) then they're not obliged to set the HTTP_REFERER as well.

So, to get full referrer URL in your PHP page, we need to use,

echo $_SERVER[HTTP_REFERER];

Have any doubt, feel free to comment here!

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