I&#x27;m not sure. PHP7 is pretty new so package maintainers may not have had a chance to put binary releases together. You may need to compile it yourself from <a href="https:&#x2F;&#x2F;github.com&#x2F;nikic&#x2F;php-ast" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;nikic&#x2F;php-ast</a>.