3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $data = array ( 0 => array ( 'admin_id' => '4', 'full_name' => 'Jesse Donat', 'timestamp' => 'Thu, 23 Oct 2014 03:34:40 +0000', ), 1 => array ( 'admin_id' => '4', 'full_name' => 'Jesse Donat', 'timestamp' => 'Thu, 23 Oct 2014 03:34:40 +0000', ), 2 => array ( 'bbq' => 'soda', ), ); print_r($data); $data = array_reduce($data, function ($c, $i) { if (count($c) == 0 && !in_array($i, $c)) { $c[] = $i; }}, []); print_r($data);
based on iTFcC
Output for 5.4.0 - 5.6.28, 7.0.0 - 7.1.0
Array ( [0] => Array ( [admin_id] => 4 [full_name] => Jesse Donat [timestamp] => Thu, 23 Oct 2014 03:34:40 +0000 ) [1] => Array ( [admin_id] => 4 [full_name] => Jesse Donat [timestamp] => Thu, 23 Oct 2014 03:34:40 +0000 ) [2] => Array ( [bbq] => soda ) ) Warning: in_array() expects parameter 2 to be array, null given in /in/T1Xvi on line 23 Warning: in_array() expects parameter 2 to be array, null given in /in/T1Xvi on line 23
Output for hhvm-3.12.0
Array ( [0] => Array ( [admin_id] => 4 [full_name] => Jesse Donat [timestamp] => Thu, 23 Oct 2014 03:34:40 +0000 ) [1] => Array ( [admin_id] => 4 [full_name] => Jesse Donat [timestamp] => Thu, 23 Oct 2014 03:34:40 +0000 ) [2] => Array ( [bbq] => soda ) ) Warning: in_array() expects parameter 2 to be an array or collection in /in/T1Xvi on line 23 Warning: in_array() expects parameter 2 to be an array or collection in /in/T1Xvi on line 23
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/T1Xvi on line 23
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/T1Xvi on line 23
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/T1Xvi on line 23
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/T1Xvi on line 23
Process exited with code 255.