1--TEST-- 2ZE2 method inheritance without interfaces 3--FILE-- 4<?php 5 6class A 7{ 8 function f($x) {} 9} 10 11class B extends A 12{ 13 function f() {} 14} 15 16?> 17===DONE=== 18--EXPECTF-- 19 20Warning: Declaration of B::f() should be compatible with A::f($x) in %sinheritance_003.php on line %d 21===DONE=== 22