Hi internals, PHP 7 leverages a lot the performance internally and many PHP applications in the wild. Much of these improvement came by experimentation through PHPNG and the usage of efficient data structures internally. This idea of performance improvements are crucial to handle more requests, reduce server overload, etc.
However, what lacks in PHP is the exposure of more efficient, use case specific data structures, that could allow end users to easily improve performance of their applications, instead of using a general, multi-purpose data structure that we have as "array". Based on that (please keep in mind I haven't spoken with library author), I'd like assess the receptability of incorporating php-ds library into core. Library author wrote a good (and lengthy) article explaining his motivation and performance benchmarks around it. Here are the related links: Article: https://medium.com/@rtheunissen/efficient-data-structures-for-php-7-9dda7af674cd Extension: https://github.com/php-ds/extension Polyfill: https://github.com/php-ds/polyfill Tests: https://github.com/php-ds/tests Benchmark: https://github.com/php-ds/benchmarks Best regards, -- Guilherme Blanco Lead Architect at E-Block