The Best of strong Typing for PHP | Damien Seguy

Discover the best practices for strong typing in PHP, including defining interfaces, using the Ester approach, and avoiding null usage, with expert Damien Seguy sharing his insights.

Key takeaways

Strong Typing in PHP is thin, but it’s not because the language is bad, it’s because most of the developers don’t take the time to understand what it’s about.
To make strong typing work, we need to define interfaces to specify what a function does, and then implement those interfaces.
There are many ways to define interfaces, one being the Ester approach, which is good for small projects.
Self-consistence is important, but it’s not easy to achieve.
Consistency is what the Ester approach syndrome is all about, it’s a design pattern that helps in creating consistent code.
To get rid of null usage in general, we need to use a null pattern object.
Traits cannot be used for strong typing.
The first step in strong typing is to define interfaces.
Some developers use arrays to initialize, but it’s not consistent.
The prediction of the other part is different from the prediction of the same.
Improves are required for the types, especially when using functions.
The number of projects that use interfaces is around 50%.
The next step is to create a replacement for null that is an object.
The order of classes and functions is important.
Some developers use the “Status quo” approach, which is just doing things the way they’ve always been done.
Some developers use the Ester approach.
The presentation is important to show the results.
For every function or method, we need to specify the type of the arguments and return types.
There are some situations where we don’t need strong typing, like when we are sharing a function.
The easiness of strong typing depends on the project.
The level of understanding of the project is important.
There are some important problems that we need to avoid.
The most important thing is to have a clear understanding of the project.
Some developers use the “Simple” approach, which is creating interfaces first.
Some developers use the “Mock object” approach, which is creating objects that mock other objects.
The first step in strong typing is to define interfaces and then implement those interfaces.
Some developers use strings to initialize.
The topological order of classes and functions is important.
Some developers use the “Object” approach, which is creating objects that are used in the project.
Some developers use the “Reference” approach, which is referencing the classes and functions in the project.
The easiness of strong typing depends on the project.
The level of understanding of the project is important.
The the “Ester approach” is a good method for strong typing, as it works well for small projects.
The topological order of classes and functions is important.
Some developers use the “Composition” approach, which is using functions to compose other functions.
The topological order of classes and functions is important.
The prediction of the other part is different from the prediction of the same.
The easiness of strong typing depends on the project.
The level of understanding of the project is important.
The topological order of classes and functions is important.

The Best of strong Typing for PHP | Damien Seguy

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