Zdravím mám problém v php kodu.
Hlásí mi to toto:

Deprecated: Function eregi() is deprecated in

    $regexp = "^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.([a-z]){2,4})$";
    
    if (!eregi($regexp, $emailaddy) ) {
        $errors[] = 'That is not a valid e-mail address.';
    }