How can the PHP code be modified to ensure that the foreach loop iterates over the updated $list array as new values are appended to it?

The issue can be solved by making a copy of the original $list array before iterating over it in the foreach loop. This way, any changes made to the $list array during the loop won't affect the iteration process. One way to achieve this is by using the array_slice function to create a copy of the $list array.

$list = [1, 2, 3, 4, 5];

// Make a copy of the original $list array
$copyList = $list;

foreach ($copyList as $item) {
    echo $item . " ";
    
    // Append new values to the $list array
    $list[] = $item + 5;
}