這里有一點問題, OuterIterator 應該是一個接口去實現,而不是去繼承一個 Iterator 迭代器, 視頻里更像是自己實現了一個 OuterIterator
2019-07-11
<?php //CountableClass.php
class CountMe implements Countable
{
protected $_myCount =3;
public function count(){
return $this->_myCount;
}
}
$obj = new CountMe();
echo $obj->count()."<br />";
echo count($obj)."<Br />";
?>
class CountMe implements Countable
{
protected $_myCount =3;
public function count(){
return $this->_myCount;
}
}
$obj = new CountMe();
echo $obj->count()."<br />";
echo count($obj)."<Br />";
?>
2018-04-09