3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $array = range(1, 1000000); array_walk($array, function(&$item) { $item *= 2; }); print_r([$array[0], $array[999999]]);
based on PPkcF
Output for 7.0.0 - 7.1.0
Array ( [0] => 2 [1] => 2000000 )
Output for 5.4.0 - 5.6.28
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 32 bytes) in /in/HLaG0 on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[', expecting ')' in /in/HLaG0 on line 9
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/HLaG0 on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/HLaG0 on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/HLaG0 on line 5
Process exited with code 255.