How can one access a parent class property in PHP?

To access a parent class property in PHP, you can use the `parent` keyword followed by `::` to access the property directly. This allows you to retrieve the value of a property defined in the parent class within a child class.

class ParentClass {
    public $parentProperty = "I am a property from the parent class.";
}

class ChildClass extends ParentClass {
    public function getParentProperty() {
        return parent::$parentProperty;
    }
}

$child = new ChildClass();
echo $child->getParentProperty(); // Output: I am a property from the parent class.