What is the best PHP function to use for splitting a string into smaller parts?

When splitting a string into smaller parts in PHP, the `explode()` function is commonly used. This function takes a delimiter as the first argument and the string to be split as the second argument. It then returns an array of substrings based on where the delimiter occurs in the original string.

$string = "Hello,World,PHP";
$parts = explode(",", $string);

print_r($parts);