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run code in 150+ php & hhvm versions
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<?php $a1=array("Dog","Cat"); $a2=array("Fido","Missy"); array_multisort($a2); print_r($a1); print_r($a2); ?>
based on ESWqI
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Array ( [0] => Dog [1] => Cat ) Array ( [0] => Fido [1] => Missy )