Installing/Configuring
PHP Manual

Installation

Most distribution LAPACK packages do not include lapacke, so the easiest method is to build from source: 

  svn co https://icl.cs.utk.edu/svn/lapack-dev/lapack/trunk lapack
  cd lapack
  mkdir build
  cd build
  cmake -D BUILD_SHARED_LIBS=ON -D LAPACKE=ON ../
  make 
  sudo make install