PHP | DOMDocument loadXML() Function

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The DOMDocument::loadXML() function is an inbuilt function in PHP which is used to load the XML file from a string.

Syntax:

mixed DOMDocument::loadXML( string $source, int $options = 0 )

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

$source: This parameter holds the string containing the XML document.
$options: This parameter holds the Bitwise OR of the libxml option constants.

Return Value: This function returns TRUE on success or FALSE on failure. This function returns a DOMDocument if it is called statically or FALSE on failure.

Below programs illustrate the DOMDocument::loadXML() function in PHP:

Program 1:

<?php 
  
// Create a new DOMDocument 
$doc = new DOMDocument(); 
   
// Load the XML file 
$doc->loadXML( 
"<user>  
    <username>Geeks123</username>  
    <name>zambiatek</name>   
    <address>   
        <phone>+91-XXXXXXXXXX</phone> 
        <email>abc@zambiatek.com</email> 
    </address>  
</user>"); 
   
// Create XML file and display it 
echo $doc->saveHTML(); 
   
?> 

Output:

<user> 
    <username>Geeks123</username> 
    <name>zambiatek</name>  
    <address>  
        <phone>+91-XXXXXXXXXX</phone>
        <email>abc@zambiatek.com</email>
    </address> 
</user>

Program 2:

<?php 
  
// Create new DOMDocument 
$doc = new DOMDocument(); 
    
// Create a comment document 
$comm1 = $doc->createComment('Starting of XML document'); 
   
// Append element to the document 
$doc->appendChild($comm1); 
   
// Create XML file and display it 
echo $doc->saveHTML(); 
   
// Load the XML file 
$doc->loadXML( 
"<user>  
    <username>Geeks123</username>  
    <name>zambiatek</name>   
    <address>   
        <phone>+91-XXXXXXXXXX</phone> 
        <email>abc@zambiatek.com</email> 
    </address>  
</user>"); 
   
// Create comment element 
$comm2 = $doc->createComment('Ending of XML document'); 
   
// Append element to the document 
$doc->appendChild($comm2); 
   
// Create XML element and display it 
echo $doc->saveHTML(); 
   
?> 

Output:

<!--Starting of XML document-->
<user> 
    <username>Geeks123</username> 
    <name>zambiatek</name>  
    <address>  
        <phone>+91-XXXXXXXXXX</phone>
        <email>abc@zambiatek.com</email>
    </address> 
</user><!--Ending of XML document-->

Reference: https://www.php.net/manual/en/domdocument.loadxml.php