Get Current Page URL Using PHP

This is a PHP function to get the current page URL with only PHP. This works within WordPress, as well.

/**
 * Get current page url
 */

function isa_current_url() {
		$pageURL = 'http';
		if( isset($_SERVER["HTTPS"]) ) {
			if ($_SERVER["HTTPS"] == "on") {$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;
}

Example Usage

One use for this is if you’re using ajax to process a form and return results to the page, and you’d like a link below the results to allow the user to “Return to the Form”, or in a sense, refresh the page.

<?php
echo '<a class="button" 
   href="'. isa_current_url(). '"
   title="Refresh this page">'.
 _('Back To The Form'). '</a>';
?>