How can PHP be used to check the validity of an email address entered by a user?

To check the validity of an email address entered by a user in PHP, you can use the filter_var() function with the FILTER_VALIDATE_EMAIL filter. This function will return true if the email address is valid and false if it is not. 

$email = "example@example.com";

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

Keywords

PHP email validation filter_var regular expression error handling

Related Questions