Php - Get current page URL

Several times it becomes necessary to find the url of the current page in php. It is not a very big deal to find it, but for a newbie it may take quite some time. So here is a function to do that. The url is stored in a static variable so that it doesn't have to be generated everytime the function is called.

function getCurrentPageUrl(){ static $pageURL = ''; if(empty($pageURL)){ $pageURL = 'http'; if(isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on')$pageURL .= 's'; $pageURL .= '://'; if($_SERVER['SERVER_PORT'] != '80')$pageURL .= $_SERVER['SERVER_NAME'].':'.$_SERVER['SERVER_PORT'].$_SERVER['REQUEST_URI']; else $pageURL .= $_SERVER['SERVER_NAME'].$_SERVER['REQUEST_URI']; } return $pageURL; } ?>