my $len = length($sup_fullname);
if ( $len == 0 ) {
    $message .= "<p>You must provide  a Full Name.</p>";
    $found_err = 1;
}
elsif ( $len > 30 ) {
    $message .= "<p>Full Name is limited to 30 characters.</p>";
    $found_err = 1;
}
elsif ( $sup_fullname =~ /[^-.'\w\s]) {
    $message .= "<p>Full Name cannot contain special symbols</p>";
    $found_err = 1;
}