What are the potential pitfalls of using array functions like array_walk in PHP for complex logic operations?

Using array functions like array_walk for complex logic operations can lead to code that is difficult to read and maintain. It may also result in reduced performance compared to using traditional loops. To solve this issue, consider breaking down the complex logic into smaller, more manageable functions, and using traditional loops for better control and clarity.

// Example of breaking down complex logic into smaller functions and using traditional loops
function processArray($array) {
    foreach ($array as $key => $value) {
        $processedValue = complexLogic($value);
        $array[$key] = $processedValue;
    }
    return $array;
}

function complexLogic($value) {
    // Complex logic implementation
    return $processedValue;
}

$array = [1, 2, 3, 4, 5];
$result = processArray($array);
print_r($result);