sudo apt-get update
sudo apt-get installa -y xz-utils gcc make perl libxml2 xsltproc
Download library from libvirt official repo.
wget https://download.libvirt.org/php/libvirt-php-0.5.8.tar.xz
Uncompress and get in the library directory.
xz -d libvirt-php-0.5.8.tar.xz
tar xf libvirt-php-0.5.8.tar
Run configure script to check all required dependencies.
./configure
Compile and install the library.
make
sudo make install
Run the following command to check if it was installed successfuly.
php -i