What are the best practices for validating email addresses in PHP applications?

Validating email addresses in PHP applications is important to ensure that the email provided by the user is in a proper format. One common way to validate email addresses is by using PHP's built-in filter_var function with the FILTER_VALIDATE_EMAIL filter. This function will check if the email address is in a valid format according to RFC 822. 

$email = "example@example.com";

if (filter_var($email, FILTER_VALIDATE_EMAIL)) {
    echo "Email address is valid.";
} else {
    echo "Email address is not valid.";
}

Keywords

email validation PHP regular expressions filter_var error handling

Related Questions