3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo () { $GLOBALS = ['a' => 1]; } foo(); echo $a;
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Fatal error: $GLOBALS can only be modified using the $GLOBALS[$name] = $value syntax in /in/PZGcu on line 4
Process exited with code 255.
Output for 8.0.0 - 8.0.30
Warning: Undefined variable $a in /in/PZGcu on line 8
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: a in /in/PZGcu on line 8
Output for 7.3.32 - 7.3.33
preferences:
153.05 ms | 401 KiB | 172 Q