cache with php

Hi, I've used the AOLServer for a while and liked its nsv_set commands where data can be cached. Basically, you have a name of a table, field, and content for it, and that content lives as long as the server does. i.e., I can set the content using the following command: nsv_set myTable field1 "This is the cached data that I will be using ..." then I can get that field anytime I want to by doing the following: set myVar [nsv_get myTable field1] here, the variable myVar will have the content "This is the cached data that I will be using ..." I'm pretty sure there is a way to do this in php, just not sure how. Any help will be appreciated. thanks, sunil.