3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo(){ (function($x) use ($y) {$y=3; return $y+$x;})(5); return $y; } var_dump(foo());
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Warning: Undefined variable $y in /in/SnNiK on line 4 Warning: Undefined variable $y in /in/SnNiK on line 6 NULL
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: y in /in/SnNiK on line 4 Notice: Undefined variable: y in /in/SnNiK on line 6 NULL
Output for 7.3.32 - 7.3.33
NULL
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38
Parse error: syntax error, unexpected '(' in /in/SnNiK on line 5
Process exited with code 255.
preferences:
195.81 ms | 402 KiB | 372 Q