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run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = array(1,5,16,7,4); $b = $a; asort($b); var_dump($b); $a = array_intersect_keys($b, $a); var_dump($a); array_walk($a, function(&$value) { ++$value; }); var_dump($a);
based on l9G7X
Output for 7.0.0 - 7.2.0
array(5) { [0]=> int(1) [4]=> int(4) [1]=> int(5) [3]=> int(7) [2]=> int(16) } Fatal error: Uncaught Error: Call to undefined function array_intersect_keys() in /in/hR85s:8 Stack trace: #0 {main} thrown in /in/hR85s on line 8
Process exited with code 255.
Output for 5.3.19 - 5.6.28
array(5) { [0]=> int(1) [4]=> int(4) [1]=> int(5) [3]=> int(7) [2]=> int(16) } Fatal error: Call to undefined function array_intersect_keys() in /in/hR85s on line 8
Process exited with code 255.