Building key sequences from strings

Oh wise and widely knowledgeable list: I'm trying to set up a custom sort for multi-level [i.e. nested] arrays. The problem is I can't seem to get PHP to recognize syntax such as follows $test=$test_array.'[index][next]'; The above example is greatly simplified. In the real world I'd be dynamically building that string to pin on the end.[i.e. I'd like to be able the drill down to a depth determined from inside a function rather than having to hard-code it] I'm all confused. The same type of syntax works for other variable types.... What am I doing wrong ? :Bruce Cooper _______________________________________________ Join Excite! - http://www.excite.com The most personalized portal on the Web!