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<?php $arrays = [ [ "Hello", "Test" ], [ "Friend", "Test" ], [ "Hello", "Code" ], [ "Hello", "Test" ], [ "hello", "Test" ], [ "Hello", "Test" ], ]; var_dump(array_unique($arrays, SORT_REGULAR));
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
array(4) { [0]=> array(2) { [0]=> string(5) "Hello" [1]=> string(4) "Test" } [1]=> array(2) { [0]=> string(6) "Friend" [1]=> string(4) "Test" } [2]=> array(2) { [0]=> string(5) "Hello" [1]=> string(4) "Code" } [4]=> array(2) { [0]=> string(5) "hello" [1]=> string(4) "Test" } }
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 array(4) { [0]=> array(2) { [0]=> string(5) "Hello" [1]=> string(4) "Test" } [1]=> array(2) { [0]=> string(6) "Friend" [1]=> string(4) "Test" } [2]=> array(2) { [0]=> string(5) "Hello" [1]=> string(4) "Code" } [4]=> array(2) { [0]=> string(5) "hello" [1]=> string(4) "Test" } }

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