How can a PHP beginner properly convert a string into an array for use in a function like setFiles?

To convert a string into an array in PHP, you can use the explode() function. This function takes a delimiter as the first argument and the string to be split as the second argument, then returns an array of substrings. Once the string is converted into an array, you can pass it as an argument to a function like setFiles for further processing.

$string = "apple,banana,orange";
$array = explode(",", $string);
setFiles($array);