PHP | XMLReader readString() Function

The XMLReader::readString() function is an inbuilt function in PHP which is used to read the contents of the current node as a string. Difference between readString() and getInnerXml() is that the former doesn’t includes the markup but only the content for subnodes.

Syntax:

string XMLReader::readString( void )

Parameters: This function doesn’t accept any parameter.

Return Value: This function returns the content of the current node as a string or empty string on failure.

Below examples illustrate the XMLReader::readString() 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>neveropen</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->readString(); ?>

• Output:

  The text inside is: neveropen

Example : 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->readString(); ?>

• Output:

  The text inside is: Hello World G4G

Reference: https://www.php.net/manual/en/xmlreader.readstring.php