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<?php $arr = (array) 'hi'; var_dump($arr); $arr = (array) array('hi'); var_dump($arr); $arr = (array) true; var_dump($arr); $arr = (array) 1; var_dump($arr);
Output for 4.3.0 - 7.1.0
array(1) { [0]=> string(2) "hi" } array(1) { [0]=> string(2) "hi" } array(1) { [0]=> bool(true) } array(1) { [0]=> int(1) }