how to get wordpress page url php code [duplicate]

This has been resolved here:

How to get URL of current page displayed?

$current_url = add_query_arg( $wp->query_vars, home_url( $wp->request ) );

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