The 
Ultimate Guide to Navigating PHP Features Updates
As PHP evolves, so do the language’s features, functionalities, and even the nuances in its behaviors: there are changed behavior in PHP. From syntax changes to the change in behavior of certain functions, it can be overwhelming to keep track of how each new version of PHP might impact your code.
This is the reason for “Changed Behavior in PHP“: it is a reference designed as an encyclopedia of features that are changing from one PHP version to the next. With clear explanations, illustrations, and actionable recommendations, this guide is an essential resource for PHP developers aiming to quickly understand why the code was working yesterday, and not today anymore.
What to Lies in the Changed Behavior in PHP Guide
- Detailed description of the change: the code has not changed, but the result is different.
- The version of PHP when it happens, may it be deprecation of complete removal
- Suggestions to handle the situation, either to get ready before the change, or to fix the impact of it
- Possible related error messages: sometimes, they are misleading
- Other resources that go deeper on that subject
- Collection of related other changed behaviors
Why Use the Changed Behavior in PHP?
This guide is made to help identify possible PHP evolutions that are impacting existing code, and speed up resolutions of theses problems.
It may also be used as a technology watch, to anticipate upcoming changes that will make the code not working on the next versions.
It also serves as a common knowledge repository: when you run into a surprising change in PHP, report it here, as it will help future fellow developers to avoid it. It may also serve as a base for static analysis developers, to strengthen code.
Contributing to the Changed Behavior Guide
You can share your experience with changed features, via the project’s GitHub repository: submit a pull request with your proposed additions or edits: new changed behaviors, complementary illustrations or external resources.