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run code in 500+ PHP versions simultaneously
<?php $arrays = [ ['a', 'c', 'b'], ['f', 'd'], [] ]; foreach ($arrays as &$array) { } unset($array); foreach ($arrays as $array) { print_r($array); }
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
Array ( [0] => a [1] => c [2] => b ) Array ( [0] => f [1] => d ) Array ( )

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