I’ve been contributing to a couple of trending php libraries recently and during the analysis and the making of the patches, noticed that many libraries were using PHP not in the way I was used to. Many of those libraries are having ‘final’ classes. Why using final classes everywhere, what is the advantage?

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Hopefully for most of us, holidays are here. A special time for resting and enjoy quality time with the family, but also for thinking. Even if I’m not attached to any religion, doing a Christmas tree is a kind of tradition… cats really loves it :-) While decorating the tree, it got me thinking about tree based data structure.

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