php—IteratorAggregate接口
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2022-04-09 22:06:55
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创建外部迭代器的接口。
接口摘要
IteratorAggregate extends Traversable { /* 方法 */ abstract public Traversable getIterator ( void ) }
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"
方法列表
IteratorAggregate::getIterator — 获取一个外部迭代器