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<?php $arr = array('k', 'o'); unset($arr[0]); unset($arr[1]); var_dump($arr); $arr = array_values($arr); $arr[]='hoho'; var_dump($arr);
based on G2SSA
Output for 7.2.0
array(0) { } array(1) { [2]=> string(4) "hoho" }
Output for 4.3.0 - 7.1.10
array(0) { } array(1) { [0]=> string(4) "hoho" }