3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function foo() { return '42'; } echo preg_replace("/foo|/e\0.../", "foo()", "meh");
Output for 5.4.7 - 7.1.0
Warning: preg_replace(): Null byte in regex in /in/PO00v on line 4
Output for 4.3.0 - 5.4.6
42m42e42h42