Hi guys: Now days I want to develop a web application like a chat room. the requests per seconds maybe very large, so I want to save some common info into to memory (quick access). So, I want to know does php have the follow features or implement them in other ways. 1. server scope objects, mostly like application in jsp. // the most important~ 2. multithread synchronize. 3. I want to start a thread timed execute, like Timer in java thanks -- Best Regards! Wen Dong
