DOMNodeList::item

(PHP 5, PHP 7, PHP 8)

DOMNodeList::item Retrieves a node specified by index

Опис

public DOMNodeList::item(int $index): DOMElement|DOMNode|DOMNameSpaceNode|null

Retrieves a node specified by index within the DOMNodeList object.

Підказка

If you need to know the number of nodes in the collection, use the length property of the DOMNodeList object.

Параметри

index

Index of the node into the collection.

Значення, що повертаються

The node at the indexth position in the DOMNodeList, or null if that is not a valid index.

Приклади

Приклад #1 Traversing all the entries of the table

<?php
$doc
= new DOMDocument;
$doc->load('examples/book-docbook.xml');

$items = $doc->getElementsByTagName('entry');

for (
$i = 0; $i < $items->length; $i++) {
echo
$items->item($i)->nodeValue . "\n";
}
?>

Приклад #2 Accessing item with array syntax

<?php
$doc
= new DOMDocument;
$doc->load('examples/book-docbook.xml');

$items = $doc->getElementsByTagName('entry');

for (
$i = 0; $i < $items->length; $i++) {
echo
$items[$i]->nodeValue . "\n";
}

?>

Приклад #3 Traversing items with foreach

<?php
$doc
= new DOMDocument;
$doc->load('examples/book-docbook.xml');

$items = $doc->getElementsByTagName('entry');

foreach (
$items as $item) {
echo
$item->nodeValue . "\n";
}
?>

Поданий вище приклад виведе:

Title
Author
Language
ISBN
The Grapes of Wrath
John Steinbeck
en
0140186409
The Pearl
John Steinbeck
en
014017737X
Samarcande
Amine Maalouf
fr
2253051209