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<!DOCTYPE html> <html> <body> <?php // Variable to check $url = "https://www.w3schools.com"; // Validate url if (!filter_var($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> </html>
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