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<?php $a = array( "one" => 1, "two" => array(2), "tres" => array ( 1,2) ); $b = array( "one" => 1, "two" => 1, "tres" => 1 ); var_dump(array_intersect_key( $a, $b ));
Output for git.master, git.master_jit, rfc.property-hooks
array(3) { ["one"]=> int(1) ["two"]=> array(1) { [0]=> int(2) } ["tres"]=> array(2) { [0]=> int(1) [1]=> int(2) } }

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