継承で子が親の private にアクセスするできるようにするやつ

AncestorPrivateAccessTrait.php

<?php
trait AncestorPrivateAccessTrait
{
    protected function invokePrivateMethod($name, $arguments = [])
    {
        $reflectionClass = new \ReflectionClass(get_class($this));
        while (!$reflectionClass->hasMethod($name)) {
            $reflectionClass = $reflectionClass->getParentClass();
            if (!$reflectionClass) {
                throw new \InvalidArgumentException('Property not found:' . $name);
            }
        }
        $method = $reflectionClass->getMethod($name);
        $method->setAccessible(true);
        array_unshift($arguments, $this);
        return call_user_func_array([$method, 'invoke'], $arguments);
    }
  
    protected function getPrivateProperty($name)
    {
        $reflectionClass = new \ReflectionClass(get_class($this));
        while (!$reflectionClass->hasProperty($name)) {
            $reflectionClass = $reflectionClass->getParentClass();
            if (!$reflectionClass) {
                throw new \InvalidArgumentException('Property not found:' . $name);
            }
        }
        $property = $reflectionClass->getProperty($name);
        $property->setAccessible(true);
        return $property->getValue($this);
    }
  
    protected function setPrivateProperty($name, $value)
    {
        $reflectionClass = new \ReflectionClass(get_class($this));
        while (!$reflectionClass->hasProperty($name)) {
            $reflectionClass = $reflectionClass->getParentClass();
            if (!$reflectionClass) {
                throw new \InvalidArgumentException('Property not found:' . $name);
            }
        }
        $property = $reflectionClass->getProperty($name);
        $property->setAccessible(true);
        $property->setValue($this, $value);
    }
}