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run code in 150+ php & hhvm versions
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<?php $array = array(1, 2, 3, 4); foreach ($array as $valor) { unset($valor); } // $array ahora es array(2, 4, 6, 8) var_dump($array); ?>
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(4) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(4) }