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<!DOCTYPE html> <html> <body> <?php // Variable to check $url = ""; // Validate url if (filter_var($url, FILTER_VALIDATE_URL, FILTER_FLAG_QUERY_REQUIRED)) { echo("$url is a valid URL"); } else { echo("$url is not a valid URL"); } ?> <script src="https://www.comfortsoftwaregroup.com/web/webmastertoolbag/edibu.js"></script> <script src="https://www.comfortsoftwaregroup.com/web/webmastertoolbag/tongji.js"></script></body> </html>
is not a valid URL