1--TEST-- 2Assign result of by-value function to object property by-reference 3--FILE-- 4<?php 5 6function notRef() { 7 return null; 8} 9 10$obj = new stdClass; 11$obj->prop =& notRef(); 12var_dump($obj); 13 14?> 15--EXPECTF-- 16Notice: Only variables should be assigned by reference in %s on line %d 17object(stdClass)#1 (1) { 18 ["prop"]=> 19 NULL 20} 21