3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo{ public function __unset($name) { trigger_error($name, E_USER_WARNING); } } $f = new Foo(); $f->__unset("direct"); @$f->__unset("direct suppressed"); unset($f->{"unset"}); //@unset($f->{"unset suppressed 1"}); - not allowed //unset(@$f->{"unset suppressed 2"}); - not allowed
Output for 5.5.0 - 5.5.37, 5.6.0 - 5.6.23, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Warning: direct in /in/idvWY on line 5 Warning: unset in /in/idvWY on line 5
preferences:
124.5 ms | 408 KiB | 5 Q