What are the advantages of using PHP's internal filter extension for validating email addresses compared to regular expressions?

When validating email addresses in PHP, using PHP's internal filter extension provides several advantages over using regular expressions. The filter extension offers a more robust and standardized way to validate email addresses, ensuring that they adhere to the correct format and structure. Additionally, the filter extension includes built-in validation rules for various types of email addresses, reducing the likelihood of errors in the validation process. Overall, using PHP's internal filter extension simplifies the task of validating email addresses and improves the accuracy of the validation process.

$email = "example@example.com";

if (filter_var($email, FILTER_VALIDATE_EMAIL)) {
    echo "Valid email address";
} else {
    echo "Invalid email address";
}