1--TEST-- 2method overloading with different method signature 3--INI-- 4error_reporting=8191 5--FILE-- 6<?php 7 8class test { 9 function &foo() {} 10} 11 12class test2 extends test { 13 function &foo() {} 14} 15 16class test3 extends test { 17 function foo() {} 18} 19 20echo "Done\n"; 21?> 22--EXPECTF-- 23Warning: Declaration of test3::foo() should be compatible with & test::foo() in %s on line %d 24Done 25