Simple Object Oriented example in PHP

class Person
{
    var $name;
    
    public function getName()
    {
        return $this->name;
    }
    
    public function setName($name)
    {
        $this->name = $name;
    }
    
}

function changeName($person, $name)
{
    $person->setName($name);
}

$obj = new Person("Milap");

$val = changeName($obj, "Patel");

print $obj->getName();

Output :-

Patel