Is it possible to set the type of an instance variable in php?

Question

PHP

Hey!
We ourselves are not local in php, it is unusual without typing object properties. This is why I ask you to help in any way you can. Let's say I have a class MyClass and another class - MyAnotherClass, which has a variable $myClassInstance. So I would like to rigidly set the type MyClass to this very variable, so that later, with my own crooked hands, I would not accidentally assign an erroneous value. I can imagine how this can be done by writing my own getter and setter, but I would like to do without preference and ballerinas.
Thanks in advance!

Answer 1

PHP does not require (or support) an explicit type when defining a variable; the type of a variable is determined by the context in which it is used. That is, if you assign a value of type string to $var, then $var becomes a string. If you then assign an integer value to $var, it becomes an integer.
php.net/manual/en/language.types.type-juggling.php

Answer 2

Setter only.

Answer 3

If your ide understands PHPDoc , then you can do this

/**
 * @var MyClass
 */
public $myClassInstance;

As you type, you will see a hint with the type.

Answer 4

Create a setter in which to prescribe the type of the parameter.
Simple practice.