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<?php function array_same_values($array) { return array_unique($array,SORT_REGULAR) !== $array; } /* テスト - 重複なし */ $array1 = array('foo', 'bar', 'baz', 'qux'); var_dump(array_same_values($array1)); //false /* テスト - 重複あり */ $array2 = array('foo', 'bar', 'baz', 'foo'); var_dump(array_same_values($array2)); // true /* テスト - 重複なし(数値と数値文字列を区別する) */ $array3 = array('foo', 'bar', 'baz', 'qux', '123', 123); var_dump(array_same_values($array3)); // true
Output for git.master, git.master_jit, rfc.property-hooks
bool(false) bool(true) bool(true)

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