Online PHP editor | refs for GUuZL

<?php /** * A very edge case in PHP 5.4 regarding passing objects by reference. * It seems to be a compound effect of using reflection to set an inherited method as 'available', * AND that method taking an explicitly referential argument (&argument sig) * AND then invoking it with func_get_args() as opposed to constructing the array of args manually. * * No idea why these things all cause this behaviour or if they should. * * Important to note that this effect isn't present in PHP 5.5. */ class A { private function foo(&$arg1) { var_dump('arg1: ', $arg1); } } class B extends A { public function bar() { $x = new stdClass(); $x->baz = 'just a value'; $this->callPrivate($x); } private function callPrivate($x) { $method = new \ReflectionMethod( 'A', 'foo' ); //* for some reason, the private function needs to have been changed to be 'accessible' for this to work in 5.4 $method->setAccessible(true); //working 5.4 (* see above) but not in 5.5 $arguments = func_get_args(); //not working in either //$arguments = array($x); // <---- COMMENT THIS LINE TO SEE IT WORK IN PHP 5.4 return $method->invokeArgs($this, $arguments); } } $y = new B(); $y->bar();