How can PHP's string manipulation functions be utilized to reformat a specific type of string data?

When dealing with a specific type of string data that needs reformatting, PHP's string manipulation functions can be utilized to achieve this. Functions like `substr_replace`, `str_replace`, `preg_replace`, `explode`, and `implode` can be used to modify the string as needed. By combining these functions strategically, you can easily reformat the string data to meet your requirements.

// Example: Reformatting a date string from YYYY-MM-DD to DD/MM/YYYY format
$dateString = '2022-01-15';
$newDateString = implode('/', array_reverse(explode('-', $dateString)));
echo $newDateString; // Output: 15/01/2022