MultipleIterator::attachIterator

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

MultipleIterator::attachIterator — Attaches iterator information

说明

public function MultipleIterator::attachIterator(Iterator $iterator, string |int |null $info = null ): void

Attaches iterator information.

警告

本函数还未编写文档,仅有参数列表。

参数

iterator: The new iterator to attach.
info: The associative information for the Iterator, which must be an int , a string , or null .

返回值

Description...

错误/异常

An IllegalValueException if the iterator parameter is invalid, or if info is already associated information.

参见

MultipleIterator::__construct() - Constructs a new MultipleIterator

发现了问题?

了解如何改进此页面 • 提交拉取请求 • 报告一个错误

+添加备注

用户贡献的备注 1 note

down

andresdzphp at php dot net ¶

14 years ago

<?php
$ait_id = new ArrayIterator(array('c1001', 'c1002', 'c1003'));
$ait_name = new ArrayIterator(array('apple', 'orange', 'banana'));
$ait_units = new ArrayIterator(array(756, 996, 2345));
$mit = new MultipleIterator(MultipleIterator::MIT_KEYS_ASSOC);
$mit->attachIterator($ait_id, "ID");
$mit->attachIterator($ait_name, "NAME");
$mit->attachIterator($ait_units, "UNITS");
echo $mit->countIterators() . "\n"; //3
if ($mit->containsIterator($ait_id)) { //true
 echo "ait_id iterator attached \n";
}
foreach ($mit as $fruit) {
 echo "<pre>";
 print_r($fruit);
 echo "</pre>";
}
?>

Result:
3
ait_id iterator attached
Array
(
 [ID] => c1001
 [NAME] => apple
 [UNITS] => 756
)
Array
(
 [ID] => c1002
 [NAME] => orange
 [UNITS] => 996
)
Array
(
 [ID] => c1003
 [NAME] => banana
 [UNITS] => 2345
)