How can PHP beginners effectively troubleshoot issues with sorting arrays in functions?

When troubleshooting sorting issues in arrays within functions, beginners can start by checking if the sorting function is correctly implemented and if the array is being passed to the function properly. They can also use built-in PHP functions like `sort()` or `asort()` to simplify the sorting process. Additionally, beginners should ensure that the array elements are of the same data type to avoid unexpected sorting results.

function sortArray($arr) {
    sort($arr);
    return $arr;
}

$array = [3, 1, 2, 5, 4];
$sortedArray = sortArray($array);

print_r($sortedArray);