The DOMNamedNodeMap::item() function is an inbuilt function in PHP which is used to retrieve a node specified by index. This function is used to get a specific attribute from an element and further we can get the name or value of that attribute as per requirements.
Syntax:
DOMNamedNodeMap DOMNamedNodeMap::item( int $index )
Parameters:This function accepts a single parameter $index which holds the index.
Return Value: This function returns a node at the index’th position in the map.
Below given programs illustrate the DOMNamedNodeMap::item() function in PHP:
Program 1: In this example, we will get the name of attributes after fetching them using index()
<?php // Create a new DOMDocument $dom = new DOMDocument(); Â Â Â Â // Load the XML $dom->loadXML("<?xml version=\"1.0\"?> <root> Â Â Â Â <html> Â Â Â Â Â Â Â Â <h1 id=\"first\"Â Â Â Â Â Â Â Â Â Â Â Â Â class=\"first\" attrib=\"attrib_value\"> Geeksforneveropen </h1> Â Â Â Â </html> </root>"); Â Â Â Â // Get the elements $node = $dom->getElementsByTagName('h1')[0]; Â Â Â Â // Get the 2nd attribute's value $attribute1 = $node->attributes->item(0)->nodeName; $attribute2 = $node->attributes->item(1)->nodeName; $attribute3 = $node->attributes->item(2)->nodeName; echo "$attribute1, $attribute2 and $attribute3"; ?> |
Output:
id, class and attrib
Program 2: In this example we will get the value of attributes after fetching them using index()
<?php // Create a new DOMDocument $dom = new DOMDocument(); Â Â Â Â // Load the XML $dom->loadXML("<?xml version=\"1.0\"?> <root> Â Â Â Â <html> Â Â Â Â Â Â Â Â <h1 id=\"first\"Â Â Â Â Â Â Â Â Â Â Â Â Â class=\"neveropen\" attrib=\"attrib_value\"> Geeksforneveropen </h1> Â Â Â Â </html> </root>"); Â Â Â Â // Get the elements $node = $dom->getElementsByTagName('h1')[0]; Â Â Â Â // Get the 2nd attribute's value $attribute1 = $node->attributes->item(0)->nodeValue; $attribute2 = $node->attributes->item(1)->nodeValue; $attribute3 = $node->attributes->item(2)->nodeValue; echo "$attribute1, $attribute2 and $attribute3"; ?> |
Output:
first, neveropen and attrib_value
Reference: https://www.php.net/manual/en/domnamednodemap.item.php
