Are there any potential drawbacks or limitations to using array_walk/map for modifying array values in PHP?

One potential drawback of using array_walk/map for modifying array values in PHP is that it modifies the original array in place, which may not be desired in all cases. To avoid this, you can create a new array with the modified values instead of directly modifying the original array.

// Original array
$array = [1, 2, 3, 4, 5];

// Create a new array with modified values using array_map
$newArray = array_map(function($value) {
    return $value * 2;
}, $array);

// Output the new array
print_r($newArray);