<?php class A { protected function _x() { echo "a"; } public function __call($methodName, array $arguments) { throw new Exception("Unknown method."); } } class B extends A { public function x() { parent::_x(); call_user_func('parent::_x'); call_user_func(['parent', '_x']); } } $b = new B; $b->x();
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Value for `_results` contains invalid data `array`