How can public functions from a parent class be accessed and utilized in extended classes in PHP?

To access and utilize public functions from a parent class in extended classes in PHP, you can simply use the `parent::` keyword followed by the function name to call the parent class function within the child class. 

class ParentClass {
    public function parentFunction() {
        return "This is a function from the parent class.";
    }
}

class ChildClass extends ParentClass {
    public function childFunction() {
        return parent::parentFunction();
    }
}

$child = new ChildClass();
echo $child->childFunction(); // Output: This is a function from the parent class.

Keywords

inheritance parent class extended class public functions access

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