How to call subclass private attribute in parent class method in PHP

I want to call the private attribute of the subclass in the parent class, but a 500 error is reported.

<code>class A
{
    public function __get($name)
    {
        $getter = 'get' . $name;
        if (method_exists($this, $getter))
        {
            return $this->$getter();
        }
    }
}

class B extends A
{
    private function getname()
    {
        return 'karly';
    }
}

$b = new B();
echo $b->name;</code>

After this code is run, the server reports a 500 error. Why does calling method_exists return true, but the method cannot be returned? Thanks.

Reply content:

I want to call the private attribute of the subclass in the parent class, but a 500 error is reported.

<code>class A
{
    public function __get($name)
    {
        $getter = 'get' . $name;
        if (method_exists($this, $getter))
        {
            return $this->$getter();
        }
    }
}

class B extends A
{
    private function getname()
    {
        return 'karly';
    }
}

$b = new B();
echo $b->name;</code>

After this code is run, the server reports a 500 error. Why does calling method_exists return true, but the method cannot be returned? Thanks.

First follow the official php documentation:

• public means global and can be accessed by subclasses inside and outside the class;

• private means private and can only be used within this class;

• protected means protected and can only be accessed in this class or subclass or parent class;

Secondly, the meaning of method_exists is to test whether it exists. The problem is that it really exists, but it just doesn’t have permission. This is not a problem.
In summary, you should use protected

It seems that private member methods can only be called by themselves