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Does anyone have any experience with PHP QuickHash (http://php.net/manual/en/book.quickhash.php)?
Some early testing shows massive improvements in memory usage for large arrays. An array with 1M items takes 226mb with a normal array and only 41mb with QuickHash and speed is about the same.
However I can hardly find stories from people actually using it in production environment so I’m curious to see if there are any reasons for not using it in production.
It has been updated to version 1.0 stable and is, according to the developer, already several years in production and is working good.
We use it now in a project and it works great. It has a much better memory usage than the default arrays. One minor issue (for us) is that it only works with int32 and not int64, however we have been able to work around that.