What are some potential pitfalls when using the threaded merge function in PHP?

One potential pitfall when using the threaded merge function in PHP is that it may not work as expected if the arrays being merged are large or complex. This can lead to unexpected results or errors. To solve this issue, you can implement a custom merge function that handles the merging process in a more efficient way.

function custom_merge_arrays($array1, $array2) {
    $merged_array = array_merge($array1, $array2);
    return $merged_array;
}

$array1 = [1, 2, 3];
$array2 = [4, 5, 6];
$result = custom_merge_arrays($array1, $array2);

print_r($result);