Use virtual pages point to one specific page

I actually found a rather easy way to achieve this:

add_rewrite_rule( 'city/([a-zA-Z]+)/?$', 
'wp-content/plugins/csv-to-html/templates/csvtohtmlpage_core.php?city=$1' );

Yes, I know I did not mention city/ in the beginning but I just wanted wanted to know how should I achieve this. If someone has better ideas. Please tell me! 🙂

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