DOMNodelist->item()
(no version information, might be only in CVS)
DOMNodelist->item() --
Retrieves a node specified by index
说明
class
DOMNodeList {
DOMNode
item ( int index )
}
Retrieves a node specified by index within the
DOMNodeList object.
提示:
If you need to know the number of nodes in the collection, use
the length property of the
DOMNodeList object.
参数
- index
Index of the node into the collection.
返回值
The node at the indexth position in the
DOMNodeList, or NULL if that is not a valid
index.
例
例子 1. Traversing all the entries of the table
<?php
$doc = new DOMDocument;
$doc->load('book.xml');
$items = $doc->getElementsByTagName('entry');
for ($i = 0; $i < $items->length; $i++) {
echo $items->item($i)->nodeValue . "\n";
}
?>
|
Alternatively, you can use foreach, which is a much more convenient way:
<?php
foreach ($items as $item) {
echo $item->nodeValue . "\n";
}
?>
|
上例将输出： Title
Author
Language
ISBN
The Grapes of Wrath
John Steinbeck
en
0140186409
The Pearl
John Steinbeck
en
014017737X
Samarcande
Amine Maalouf
fr
2253051209 |
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