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MultipleIterator::attachIterator

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

MultipleIterator::attachIteratorAttaches iterator information

说明

public 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

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User Contributed Notes 1 note

up
7
andresdzphp at php dot net
12 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
)
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