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run code in 150+ php & hhvm versions
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<?php $a = array( array('id' => 3, 'a' => 33), array('id' => 5, 'a' => 55), array('id' => 7, 'b' => 256), array('id' => '', 'a'=> 512), ); var_dump(array_column($a, null, 'id'));
Output for 5.5.0 - 5.6.28, hhvm-3.10.0 - 3.13.2, 7.0.0 - 7.1.0
array(4) { [3]=> array(2) { ["id"]=> int(3) ["a"]=> int(33) } [5]=> array(2) { ["id"]=> int(5) ["a"]=> int(55) } [7]=> array(2) { ["id"]=> int(7) ["b"]=> int(256) } [""]=> array(2) { ["id"]=> string(0) "" ["a"]=> int(512) } }
Output for 5.0.0 - 5.4.45
Fatal error: Call to undefined function array_column() in /in/6VGoP on line 9
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: array_column() in /in/6VGoP on line 9
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: array_column() in /in/6VGoP on line 9
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: array_column() in /in/6VGoP on line 9