The libvirt-php, originally called php-libvirt, is the PHP API bindings for the libvirt virtualization toolkit originally developed by Radek Hladik.
The PHP bindings code source is now maintained in a git repository available on gitlab.com:
git clone https://gitlab.com/libvirt/libvirt-php.git
Since February 2011 the project has its own pages hosted at libvirt.org. For more information on the project please refer to https://libvirt.org/php.