With deprecation warning enabled:
PHP Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; SphinxClient has a deprecated constructor in /workspace/src/vendor/neutron/sphinxsearch-api/sphinxapi.php on line 386
composer install got:
- Installing neutron/sphinxsearch-api (2.0.8)
The last release happened on 2013-08-07 and the repository seems kind of abandoned.