The PHP project as a whole has been migrating to use git as its SCM of choice. This includes the core code and some PECL extensions such as BitSet and the sources for the web properties like

Well now the PHP team have helped me to migrate the source of ssdeep to git, which means it is now also mirrored (where you can star it) to the official PHP github account. If you also maintain a PECL extension then you might be interested in the thread I created on the mailing list.

If you do not know what the ssdeep extension is then I have previously written a post describing it and how it came into being.