What are the advantages and disadvantages of using regular expressions and patterns in PHP for data manipulation?

Regular expressions and patterns in PHP are powerful tools for data manipulation. They allow for complex string matching and manipulation, making it easier to extract specific information from text. However, regular expressions can be difficult to write and understand, especially for beginners. Additionally, they can be resource-intensive and may not always be the most efficient solution for simple tasks.

// Example of using regular expressions to extract email addresses from a string
$string = "Contact us at email@example.com or visit our website at www.example.com";
$pattern = '/[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}/';
preg_match_all($pattern, $string, $matches);
print_r($matches[0]);