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<!DOCTYPE html> <html> <body> <?php $str = chr(43); $str2 = chr(61); echo("2 $str 2 $str2 4"); ?> </body> <!-- Mirrored from www.w3schools.com/php/phptryit.asp?filename=tryphp_func_string_chr3 by HTTrack Website Copier/3.x [XR&CO'2014], Tue, 07 Jun 2022 20:30:06 GMT --> </html>
2 + 2 = 4