3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $array = array('1', '1a', '2a', '3', '4a'); $array2 = array_map(function($val) { return strpos($val, 'a') ? $val : null; }, $array); var_dump($array2);
Output for 5.3.0 - 7.1.0
array(5) { [0]=> NULL [1]=> string(2) "1a" [2]=> string(2) "2a" [3]=> NULL [4]=> string(2) "4a" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/j4O4o 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, expecting ')' in /in/j4O4o on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/j4O4o on line 5
Process exited with code 255.