Access change for method 'x' inherited from 'y'

Sample code:

//...
class base {
    private $size;
    
    protected function init_size($size) {
        $this->size = $size;
    }
}
//...
class derived extends base {
    public function init_size($s) { // Access change for method 'init_size' inherited from 'base'
        base::init_size($s);
    }
}
//...

Access modifier for method in derived class is changed from its original declaration in base class.