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<?php $array1 = array("a" => "green", "b" => "brown", "c" => "blue", "red"); $array2 = array("a" => "green", "b" => "yellow", "red"); $result = array_diff_key($array1, $array2); var_dump($result, $array1, $array2);
Output for git.master, git.master_jit, rfc.property-hooks
array(1) { ["c"]=> string(4) "blue" } array(4) { ["a"]=> string(5) "green" ["b"]=> string(5) "brown" ["c"]=> string(4) "blue" [0]=> string(3) "red" } array(3) { ["a"]=> string(5) "green" ["b"]=> string(6) "yellow" [0]=> string(3) "red" }

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