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<?php $x = array(1, 2, 3, 'dupa' => 3, 245); print_r($x); unset($x[1]); unset($x['dupa']); print_r($x);
Output for 4.3.0 - 7.1.0
Array ( [0] => 1 [1] => 2 [2] => 3 [dupa] => 3 [3] => 245 ) Array ( [0] => 1 [2] => 3 [3] => 245 )