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run code in 200+ php & hhvm versions
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<?php $indexArray = ['a', 'b', 'c']; $assocArray = ['a' => 'b', 'b' => 'c', 'd' => 'e']; var_dump(array_values($indexArray)); var_dump(array_values($assocArray)); if ($indexArray === array_values($indexArray)) { echo "it works"; }
Output for 5.6.30, hhvm-3.15.4 - 3.22.0, 7.0.0 - 7.3.0beta2
array(3) { [0]=> string(1) "a" [1]=> string(1) "b" [2]=> string(1) "c" } array(3) { [0]=> string(1) "b" [1]=> string(1) "c" [2]=> string(1) "e" } it works