Plugin for conditional redirect

if ( ! isset( $_SERVER['HTTP_REFERER'] ) AND 'your_page1' !== $_SERVER['HTTP_REFERER'] )
{
    exit( wp_redirect( $target, 301 ) );
}

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)