Online PHP editor | refs for 69vW4

<?php // First array, wont use unset $arr = array( 'a' => array('value' => 2), 'b' => array('value' => 4), 'c' => array('value' => 6) ); // Second copy, for unset $arr2 = $arr; // Loop and display without unset foreach ($arr as &$a) { $a['value'] /= 2; } echo "Without Unset:"; foreach ($arr as $a) { print_r($a); } // Loop and display with unset foreach ($arr2 as &$b) { $b['value'] /= 2; } unset($b); echo "With Unset:"; foreach ($arr2 as $b) { print_r($b); }