How can PHP developers ensure proper encapsulation and maintainability when calling methods within a class?

To ensure proper encapsulation and maintainability when calling methods within a class in PHP, developers should adhere to the principles of object-oriented programming. This includes using access modifiers like public, private, and protected to control the visibility of class members, and creating clear and concise method names that accurately describe their purpose. Additionally, developers should avoid tightly coupling classes together and instead use dependency injection to increase flexibility and maintainability. 

class MyClass {
    private $data;

    public function __construct($data) {
        $this->data = $data;
    }

    public function processData() {
        // Perform some processing on the data
    }

    private function helperMethod() {
        // Helper method that should not be accessed from outside the class
    }
}

Keywords

encapsulation maintainability PHP methods class object-oriented programming

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