MultipleIterator
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MultipleIterator::attachIterator

(PHP 5 >= 5.3.0)

MultipleIterator::attachIteratorAttaches iterator information

说明

public void MultipleIterator::attachIterator ( Iterator $iterator [, string $infos ] )

Attaches iterator information.

Warning

本函数还未编写文档,仅有参数列表。

参数

iterator

The new iterator to attach.

infos

The associative information for the Iterator, which must be an integer, a string, or NULL.

返回值

Description...

错误/异常

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

参见


MultipleIterator
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用户评论:

DDT (2013-01-12 02:38:09)

If you have multiple file upload fields named "files[]"...

<?php
if (isset($_FILES["files"])) {
   
$uploads = new MultipleIterator(MultipleIterator::MIT_KEYS_ASSOC);
   
$uploads->attachIterator(new ArrayIterator((array) $_FILES["files"]["name"]), "name");
   
$uploads->attachIterator(new ArrayIterator((array) $_FILES["files"]["size"]), "size");
   
$uploads->attachIterator(new ArrayIterator((array) $_FILES["files"]["type"]), "type");
   
$uploads->attachIterator(new ArrayIterator((array) $_FILES["files"]["tmp_name"]), "tmp_name");
   
$uploads->attachIterator(new ArrayIterator((array) $_FILES["files"]["error"]), "error");

   foreach (
$uploads as $file) {
      echo 
htmlspecialchars($file["name"]) . " = {$file["size"]} bytes<br/>";
   }
}
?>

andresdzphp at php dot net (2011-09-27 23:14:16)

<?php
$ait_id 
= new ArrayIterator(array('c1001''c1002''c1003'));
$ait_name = new ArrayIterator(array('apple''orange''banana'));
$ait_units = new ArrayIterator(array(7569962345));

$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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