<html><body>$str = "Hello world. (can you hear me?)";echo quotemeta($str); </body><!-- Mirrored from www.w3schools.com/php/phptryit.asp?filename=tryphp_func_string_quotemeta by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 02:51:06 GMT --></html>