The source code behind PHP is managed through the versioning system SVN. There are three active branches:
In SVN, when checking out these modules it will also automagically include the TSRM, Zend and ZendEngine2 modules.
There are two main methods for getting the latest PHP source files, either directly from SVN or by downloading a Snapshot
This is where developers actively add/modify code. A few differences from snaps:
Each branch is built around four times a day, and the snapshots system runs a few scripts in order to lesson the burden of required tools for building. A few differences from SVN:
Because PHP is a glue for many other libraries, often times third-party libraries are required to build it. For example, if you want to build in Postgresql support then the server doing the build requires access to PostgreSQL and its developmental (head) files. When a system uses packages or RPMs, often times this means also installing foo-dev or foo-devel packages as they contain the needed header files.
The PHP configure system checks for these libraries and will inform you if they are missing.
The bugs system is used to report bugs and feature requests for internals and related activities like the documentation and php.net website.
Writing tests means …