1--TEST-- 2ZE2 a class cannot extend an interface 3--FILE-- 4<?php 5 6interface Test 7{ 8 function show(); 9} 10 11class Tester extends Test 12{ 13 function show() { 14 echo __METHOD__ . "\n"; 15 } 16} 17 18$o = new Tester; 19$o->show(); 20 21?> 22===DONE=== 23--EXPECTF-- 24Fatal error: Class Tester cannot extend interface Test in %sinterface_and_extends.php on line %d 25