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<!DOCTYPE html> <html> <body> <?php // Variable to check $url = "../index.html"; // Validate url if (!filter_var($url, FILTER_VALIDATE_URL, FILTER_FLAG_QUERY_REQUIRED) === false) { echo("$url is a valid URL with a query string"); } else { echo("$url is not a valid URL with a query string"); } ?> </body> <!-- Mirrored from www.w3schools.com/php/phptryit.asp?filename=tryphp_filter_adv3 by HTTrack Website Copier/3.x [XR&CO'2014], Tue, 07 Jun 2022 20:29:34 GMT --> </html>
https://www.w3schools.com is not a valid URL with a query string