1--TEST-- 2SPL: Countable 3--FILE-- 4<?php 5 6class Test implements Countable 7{ 8 function count() 9 { 10 return 4; 11 } 12}; 13 14$a = new Test; 15 16var_dump(count($a)); 17 18?> 19===DONE=== 20--EXPECT-- 21int(4) 22===DONE=== 23