What is a getter method and how can it be used to access protected variables in PHP classes?

A getter method is a function within a class that allows access to a protected variable from outside the class. By using a getter method, you can retrieve the value of a protected variable without directly accessing it, thus maintaining encapsulation and data integrity in your PHP classes. 

class MyClass {
    protected $myVariable;

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

$obj = new MyClass();
$obj->myVariable = "Hello, World!";
echo $obj->getMyVariable(); // Output: Hello, World!

Keywords

getter method protected variables PHP classes access functions

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