How can the $_SERVER['REQUEST_URI'] variable be utilized to determine the active URL in a PHP script?

To determine the active URL in a PHP script, you can use the $_SERVER['REQUEST_URI'] variable. This variable contains the URI of the current request, including query parameters if present. By accessing this variable, you can easily determine the active URL being accessed by the user. 

$current_url = "http://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
echo $current_url;

Keywords

$_SERVER REQUEST_URI variable active URL PHP script

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