Re: [PHP4BETA] Output compression

On Sat, Nov 13, 1999 at 03:25:53PM +0100, Christian Schneider wrote: > A while ago I implemented Content-encoding: gzip compression for php (that was > back in 3.06 and 3.1 days) which never made it into the distribution. I was > thinking about reimplementing it for php4. > I looked into the SAPI/ext mechanism but it doesn't really fit in there as I > need to act as a filter between the core and the SAPI module, not replace the > SAPI module. > I can think of three approaches: > 1) Don't touch core code and wedge into SAPI output functions at module > initialization (Problem: Get request-specific context to store compression > state.) > 2) Hack it into the low-level output functions (that's what I did the first > time). > 3) Extend SAPI or add a Filter mechanism where output filters can register to. > > I looked into 1) because I wanted to avoid changing the core code but ran into > problems with where to store compression context. Solution 3) would be the > cleanest but I didn't work at the PHP4 code quite a while. Maybe someone else > has a better overview over the code and can tell me if it would be feasible/easy > to do. A general filter mechanism would be nice. The session module is already able to filter and convert URLs in pages. See ext/standard/output.c. -- Regards, Sascha Schumann Consultant