PHP预定义接口：聚合式迭代器
2019-09-07 阅读 : 次
(No version information available, might only be in Git)
简介
创建外部迭代器的接口。
接口摘要
IteratorAggregate extends Traversable { /* 方法 */ abstract public getIterator ( void ) : Traversable }Example #1 基本用法
<?php
class myData implements IteratorAggregate {
public $property1 = "Public property one";
public $property2 = "Public property two";
public $property3 = "Public property three";
public function __construct() {
$this->property4 = "last property";
}
public function getIterator() {
return new ArrayIterator($this);
}
}
$obj = new myData;
foreach($obj as $key => $value) {
var_dump($key, $value);
echo "/n";
}
?>
以上例程的输出类似于：
string(9) "property1"string(19) "Public property one"string(9) "property2"string(19) "Public property two"string(9) "property3"string(21) "Public property three"string(9) "property4"string(13) "last property"
Table of Contents
- IteratorAggregate::getIterator — 获取一个外部迭代器
本文地址：https://www.helloaliyun.com/tutorial/337.html
上一篇：PHP预定义接口：迭代器 下一篇：PHP预定义接口：数组式访问
