<html><body>// case-insensitive constant namedefine("GREETING", "Welcome to W3Schools.com!", true);echo greeting; </body><!-- Mirrored from www.w3schools.com/php/phptryit.asp?filename=tryphp_constant2 by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 02:29:31 GMT --></html>