PHP | XMLReader getParserProperty() Function

The XMLReader::getParserProperty() function is an inbuilt function in PHP which is used to check if specified property has been set or not.

Syntax:

bool XMLReader::getParserProperty( int $property )

Parameters: This function accepts a single parameter $property which holds an integer corresponding to one of PARSER Options constants.
List of Parser Options constants are given below:

• XMLReader::LOADDTD (1) This will load DTD but does not validate.
• XMLReader::DEFAULTATTRS (2) This will load DTD and default attributes but does not validate.
• XMLReader::VALIDATE (3) This will load DTD and validate while parsing.
• XMLReader::SUBST_ENTITIES (4) This will substitute entities and expand references.

Return Value: This function returns TRUE on success or FALSE on failure.

Exceptions: This function throws XMLReaderException on error.

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

Example 1:

• data.xml

  <?xml version="1.0" encoding="utf-8"?>
  <div xmlns:x="geeksforgeeks">
      <x:h1 x:attrib="value">
        Namespaced Text
      </x:h1>
  </div>
• index.php

  <?php
  
  // Create a new XMLReader instance
  $XMLReader = new XMLReader();
  
  // Open the XML file with sample XML
  $XMLReader->open('data.xml');
  
  // Check if XMLReader::VALIDATE is set or not
  $isProperty = $XMLReader->
  getParserProperty(XMLReader::VALIDATE);
  
  if (!$isProperty) {
      echo 'Property isn\'t set.';
  }
  ?>
• Output:

  Property isn't set.

Example 2:

• data.xml

  <?xml version="1.0" encoding="utf-8"?>
  <div xmlns:x="geeksforgeeks">
      <x:h1 x:attrib="value">
        Namespaced Text
      </x:h1>
  </div>
• index.php

  <?php
  
  // Create a new XMLReader instance
  $XMLReader = new XMLReader();
  
  // Open the XML file with sample XML
  $XMLReader->open('data.xml');
  
  // Set the Parser Property
  $XMLReader->setParserProperty(
      XMLReader::VALIDATE, true);
  
  // Check if XMLReader::VALIDATE
  // is set or not
  $isProperty = $XMLReader->getParserProperty(
          XMLReader::VALIDATE);
  
  if ($isProperty) {
      echo 'Property is set.';
  }
  ?>
• Output:

  Property is set.

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