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<!DOCTYPE html> <html> <body> <?php $x = 5; function add($y) { global $x; return $x + $y; } echo "$x + 5 is " . add(5); ?> </body> <!-- Mirrored from www.w3schools.com/php/phptryit.asp?filename=tryphp_keyword_global by HTTrack Website Copier/3.x [XR&CO'2014], Tue, 07 Jun 2022 20:30:04 GMT --> </html>
5 + 5 is 10