Question

How to pull website name from email address in php/mysql.
Exploding is too expensive here ,as i have to do it for several thousands data inside db

original data
[e-mail]
[e-mail]

needed data
example.com
example1.com

Answer 1

function getDomain( $email ) {
    return substr( $email, strpos( $email, '@' ) + 1 );
}

$website = getDomain( '[e-mail]' );