Recording the referer page

In this article we are about to show you how you can record the page that user viewing before the submission of the form was made.

In order to achieve this just use the following code as a default value for a hidden field for example:

//<code>
if(isset($_POST['form']['field_name'])){
return $_POST['form']['field_name'];
}else{
return isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : '';
}
//</code>

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