What are the best practices for declaring and using class variables in PHP to avoid global declarations?

When declaring and using class variables in PHP, it's best to avoid global declarations to maintain encapsulation and prevent potential conflicts with other parts of the code. Instead, you can declare class variables as private or protected and provide getter and setter methods to access and modify them. This ensures that the variables are only accessible within the class and can be controlled through defined methods. 

class MyClass {
    private $myVariable;

    public function getMyVariable() {
        return $this->myVariable;
    }

    public function setMyVariable($value) {
        $this->myVariable = $value;
    }
}

Keywords

class variables scope global declarations object-oriented programming encapsulation

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