PHP | XMLReader readOuterXml() Function

0 0 1 minute read

The XMLReader::readOuterXml() function is an inbuilt function in PHP which is used to read the contents of the current node, including the node itself.

Syntax:

string XMLReader::readOuterXml( void )

Parameters: This function doesn’t accept any parameter.

Return Value: This function returns the contents of current node, including itself, as a string or empty string on failure.

Below examples illustrate the XMLReader::readOuterXml() function in PHP:

Example 1: In this program, we will read the value of an element without sub-nodes.

data.xml
<?xml version="1.0" encoding="utf-8"?>

<div>

<h1>Hello World</h1>

</div>

index.php

<?php 
  
// Create a new XMLReader instance 
$XMLReader = new XMLReader(); 
  
// Open the XML file 
$XMLReader->open('data.xml'); 
  
// Iterate through the XML nodes to 
// reach the h1 element 
$XMLReader->read(); 
$XMLReader->read(); 
$XMLReader->read(); 
  
// Print the XML content 
// Here it will include itself, 
// <h1> tags also 
echo "The text inside is:" .  
    $XMLReader->readOuterXml(); 
?> 

Output:

Example 2: In this program, we will read the value of an element with sub-nodes.

data.xml
<?xml version="1.0" encoding="utf-8"?>

<div>

    <h1>Hello World

      <sub>G4G</sub>

    </h1>

</div>

index.php

<?php 
  
// Create a new XMLReader instance 
$XMLReader = new XMLReader(); 
  
// Open the XML file 
$XMLReader->open('data.xml'); 
  
// Iterate through the XML nodes to 
// reach the h1 element 
$XMLReader->read(); 
$XMLReader->read(); 
$XMLReader->read(); 
  
// Print the XML content 
echo "The text inside is:" .  
    $XMLReader->readOuterXml(); 
?> 