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run code in 200+ php & hhvm versions
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<?php $data = array( array('cid' => 123, 'detail' => array( 'sourceid' => '789', 'name' => 'haha', )), 'bduss' => 'abc' ); var_dump($data);
based on c0XqO
Output for 4.3.0 - 7.2.0
array(2) { [0]=> array(2) { ["cid"]=> int(123) ["detail"]=> array(2) { ["sourceid"]=> string(3) "789" ["name"]=> string(4) "haha" } } ["bduss"]=> string(3) "abc" }