Did some benchmarking, xarray has performance boost comparing to pure php implementation.<p>The benchmark code is placed at <a href="https:&#x2F;&#x2F;github.com&#x2F;Ronmi&#x2F;xarray-benchmark" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;Ronmi&#x2F;xarray-benchmark</a>