<?php function arr_unique($arr) { sort($arr); $curr = $arr[0]; $uni_arr[] = $arr[0]; for($i=0; $i<count($arr);$i++){ if($curr != $arr[$i]) { $uni_arr[] = $arr[$i]; $curr = $arr[$i]; } } return $uni_arr; } var_export(arr_unique([null, '', .0, [], false, null, 0, '0.0', -.1, "\0", false, []]));
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