PHP | XMLReader XML() Function

The XMLReader::XML() function is an inbuilt function in PHP which is used to set the data containing the XML to parse. XML() function serves the same purpose as open function but the only difference is former accepts XML as string while later accepts it as a separate .xml file.

Syntax:

bool XMLReader::XML( string $source, 
string $encoding, int $options )

Parameters: This function accepts three parameters as mentioned above and described below:

• $source: It specifies the string containing the XML to be parsed.
• $encoding (Optional): It specifies the document encoding or NULL.
• $options (Optional): It specifies the optional bitmask.

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

Exceptions: This function throws E_STRICT error when called statically.

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

Example 1:

<?php

// Create a new XMLReader instance
$XMLReader = new XMLReader();

$XML = "<?xml version=\"1.0\"?>
<div>
    <p> GeeksforGeeks </p>
</div>";

// Open the XML file
$XMLReader->XML($XML);

// Iterate through the XML nodes
while ($XMLReader->read()) {
    if ($XMLReader->nodeType == XMLREADER::ELEMENT) {

        echo "We are at " . $XMLReader->name . "<br>";

    }
}
?>

Output:

We are at div
We are at p

Example 2:

<?php

// Create a new XMLReader instance
$XMLReader = new XMLReader();

$XML = "<?xml version=\"1.0\"?>
<div>
    <p> GeeksforGeeks </p>
</div>";

// Open the XML file
$XMLReader->XML($XML);

// Read the nodes
$XMLReader->read();

// Read it as a string
$string = $XMLReader->readString();

// Output the string to the browser
echo $string;
?>

Output:

GeeksforGeeks

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