Complete name change

The name change was introduced in the 2.8 branch.

Author: luka-zitnik

components/http_foundation.rst

@@ -156,7 +156,7 @@ exist::
     // returns 'baz'
 
 When PHP imports the request query, it handles request parameters like
-``foo[bar]=bar`` in a special way as it creates an array. So you can get the
+``foo[bar]=baz`` in a special way as it creates an array. So you can get the
 ``foo`` parameter and you will get back an array with a ``bar`` element::
 
     // the query string is '?foo[bar]=baz'