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I personally don’t like passing by reference. It is not required by PHP and by omitting it at the end of a file you are making sure that no trailing whitespace can be added. In fact, the Zend Framework specifically forbids it. If you take a look, most core WordPress files omit the ending PHP tag when a file ends with PHP code. Do Not Use PHP Close Tags at the End of a File

To understand just how important speed is and what you can do to make things better, take a look at our beginners’ guide to speed optimization article.Īs developers you should always make sure to load scripts only when they are needed, concatenate them when possible, write efficient database queries, use caching when possible and so on. Don’t be content with your site speed simply because the switch to PHP 7 made it faster. This one may be a no-brainer but it will become increasingly important because the speed increases in PHP 7 may hide some of your issues. PHP 7 will remove them altogether from core which means you’ll need to move to the far better mysqli_ functions, or the even more flexible PDO implementation. The time has finally come when you won’t just be advised to stop using mysql_ functions. PHP 7 Best Practices AKA What Not to Do in PHP 7 And don’t forget to check out our new mega-benchmark of the final version of PHP 7.2. I’ve already shared some of the upcoming features of PHP 7, in this article I thought I’d take a look at some of the bad patterns we should stop using as we switch to the lightning fast PHP 7.