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<?php $array = ["red", "color" => "red", 78, 78, 12, "12", false, null, false, 0, true, 1, 0, null, 2.12, "2.12", 8, "-s"]; var_dump(array_unique($array, SORT_REGULAR));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
array(10) { [0]=> string(3) "red" ["color"]=> string(3) "red" [1]=> int(78) [3]=> int(12) [5]=> bool(false) [6]=> NULL [10]=> int(1) [13]=> float(2.12) [15]=> int(8) [16]=> string(2) "-s" }
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
array(11) { [0]=> string(3) "red" ["color"]=> string(3) "red" [1]=> int(78) [3]=> int(12) [5]=> bool(false) [6]=> NULL [7]=> bool(false) [10]=> int(1) [13]=> float(2.12) [15]=> int(8) [16]=> string(2) "-s" }
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
array(7) { [0]=> string(3) "red" [1]=> int(78) [3]=> int(12) [5]=> bool(false) [10]=> int(1) [13]=> float(2.12) [15]=> int(8) }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/PXQZe on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/PXQZe on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/PXQZe on line 3
Process exited with code 255.

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