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<?php function check($opts = array('a' => 'jeden', 'b' => array(1,2,3 => '4'))) { var_dump($opts); } check();
based on TavuX
Output for 4.3.0 - 7.2.0
array(2) { ["a"]=> string(5) "jeden" ["b"]=> array(3) { [0]=> int(1) [1]=> int(2) [3]=> string(1) "4" } }