1--TEST-- 2Testing get_parent_class() 3--FILE-- 4<?php 5 6interface ITest { 7 function foo(); 8} 9 10abstract class bar implements ITest { 11 public function foo() { 12 var_dump(get_parent_class()); 13 } 14} 15 16class foo extends bar { 17 public function __construct() { 18 var_dump(get_parent_class()); 19 } 20} 21 22$a = new foo; 23$a->foo(); 24 25?> 26--EXPECT-- 27string(3) "bar" 28bool(false) 29