What are the advantages and disadvantages of using preg_replace() versus preg_replace_callback() in PHP for text manipulation tasks?

When it comes to text manipulation tasks in PHP, using preg_replace() is simpler and more straightforward as it allows for easy replacement of patterns in a string. However, preg_replace_callback() provides more flexibility as it allows for the use of custom functions to manipulate the matched patterns before replacing them. The choice between the two methods depends on the complexity of the task at hand and the need for custom logic during the replacement process.

// Example using preg_replace()
$text = "Hello, world!";
$newText = preg_replace('/world/', 'PHP', $text);
echo $newText; // Output: Hello, PHP!

// Example using preg_replace_callback()
$text = "Hello, world!";
$newText = preg_replace_callback('/world/', function($matches){
    return strtoupper($matches[0]);
}, $text);
echo $newText; // Output: Hello, WORLD!