Issues with structual replacement

I am trying to update the obsolete mysql_ functions with the new mysqli class.

My Search Template:

$row$ = mysql_fetch_array($query$)

My Replacement template:

$row$ = $query$->fetch_array()

Giving me back the Error "Unsopported replacement pattern.."

Changing my search template to

$row$ = mysql_fetch_array($query$)) 

strangly solved the problem. Giving me this

No template '$dates$ = mysql_fetch_array($quere$))' found in All Places

Can sb. explain me what I´m doing wrong?

Thanks a lot!