How do I Get the Current Page URL in PHP?

Retrieving the Current Page URL in PHP

In PHP, obtaining the URL of the current page is a straightforward task. This is particularly useful when implementing URL-dependent logic or generating dynamic content.

Solution using $_SERVER['REQUEST_URI']

The most direct method to access the current page URL is through the $_SERVER['REQUEST_URI'] variable. This variable contains the complete URL, including the protocol, domain, and path, but excluding the query string.

Example:

<code class="php"><?php
    echo $_SERVER['REQUEST_URI']; // Example output: /my-page.php
?></code>

Retrieving the Query String

If you need to obtain the query string (the portion of the URL after the "?" symbol), you can utilize the $_SERVER['QUERY_STRING'] variable.

Example:

<code class="php"><?php
    echo $_SERVER['QUERY_STRING']; // Example output: name=John&age=32
?></code>

Additional Notes

• $_SERVER['REQUEST_URI'] is a heavily utilized variable, and its contents may be modified by external factors such as URL rewriting or proxy servers.
• PHP also provides other variables related to the current URL, such as $_SERVER['SERVER_NAME'], $_SERVER['SERVER_PORT'], and $_SERVER['HTTPS'].

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