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A comment on Upcoming changes in PHP 7.1. Parent comment

Re:Upcoming changes in PHP 7.1 by elgenie on Wednesday May 25, 2016 @09:47AM (#11769700)
You want to be able to communicate intent to clients of the function, especially with static tooling to check for common errors. For example:

https://github.com/facebook/hhvm/blob/HHVM-3.13/hphp/hack/te...

... has an obvious code smell detectable statically:

https://github.com/facebook/hhvm/blob/HHVM-3.13/hphp/hack/te...

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