What is the significance of using $HTTP_GET_VARS['site'] instead of $_GET['site'] in the code?

Using $HTTP_GET_VARS['site'] instead of $_GET['site'] is significant if you are working on an older PHP version that doesn't support the superglobal $_GET. In such cases, using $HTTP_GET_VARS is a way to access GET parameters passed in the URL. However, it's important to note that $HTTP_GET_VARS is deprecated as of PHP 5.3.0 and removed in PHP 5.4.0, so it's recommended to use $_GET instead for better compatibility and future-proofing your code. 

// Using $HTTP_GET_VARS['site'] to access GET parameter 'site'
$site = $HTTP_GET_VARS['site'];

// Alternatively, using $_GET['site'] for better compatibility
$site = isset($_GET['site']) ? $_GET['site'] : '';

Keywords

$HTTP_GET_VARS $_GET PHP superglobal variable

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