How can the filter_var() function with FILTER_VALIDATE_EMAIL be used for email validation in PHP?

To validate an email address in PHP, you can use the filter_var() function with the FILTER_VALIDATE_EMAIL flag. This function will check if the provided email address is in a valid format according to RFC 822. If the email address is valid, the function will return the email address. If not, it will return false. 

$email = "example@example.com";

if (filter_var($email, FILTER_VALIDATE_EMAIL)) {
    echo "Email address is valid.";
} else {
    echo "Invalid email address.";
}

Keywords

filter_var FILTER_VALIDATE_EMAIL email validation PHP function

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