PHP 7.2 Object Type Hinting

In PHP 7.2 we now have the ability to type hint an object. In previous versions of PHP we can type hint such things as a boolean, array, etc.... Having the ability to type hint is pretty useful if you are working on big teams this can be helpful with readability.

Not everyone is a fan of type hinting in PHP, but type hinting becomes very usesful in my opinion on teams that are more then 5 developers and even then it is a good practice I do now. If you are using PHP Storm it makes it very easy to see what you can pass to a function, instead of trying to figure out what the parameters should be to a function.

Here is an example of object type hinting:

class User {
    ...
}
$myclass = new User;

function test(User $arg) : Object {
    return $arg;
}

As a developer, I rather pass objects around then primitive types. This was a practice I like in Java and miss, hopefully with new feature, object type hinting will be used more.