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run code in 200+ php & hhvm versions
Bugs & Features
<?php print_r(array_unique(array(4, "4", "3", 4, 3, "3", 3, 3, 3, 3, 3, 5, 5, 5, 5, 7, 7, 7, 7)));
Output for 4.3.0 - 7.2.0
Array ( [0] => 4 [2] => 3 [11] => 5 [15] => 7 )