3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = [ [ 'id' => 123, ], [ 'id' => 124, ], [ 'id' => 125, ] ]; $b = array_map(function($item) { return $item['id']; }, $a); var_dump();
Output for 5.4.0 - 7.1.0
Warning: var_dump() expects at least 1 parameter, 0 given in /in/hKlcA on line 16
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/hKlcA on line 2
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 '[' in /in/hKlcA on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/hKlcA on line 2
Process exited with code 255.