3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = [ [ 'ID' => 3, 'Username' => 'TomC', 'Project_Name' => 'Inventory' ], [ 'ID' => 4, 'Username' => 'JakeP', 'Project_Name' => 'Inventory' ], [ 'ID' => 2, 'Username' => 'TomC', 'Project_Name' => 'Stocks' ],[ 'ID' => 1, 'Username' => 'Tomc', 'Project_Name' => 'Stocks' ] ]; $b = array_unique( array_column($a, 'Username') ); print_r($b);
based on 3OlWP
Output for 5.5.24 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Array ( [0] => TomC [1] => JakeP [3] => Tomc )
Output for 5.4.0 - 5.4.45
Fatal error: Call to undefined function array_column() in /in/jMEP2 on line 26
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/jMEP2 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/jMEP2 on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/jMEP2 on line 2
Process exited with code 255.