The DOMDocument::createProcessingInstruction() function is an inbuilt function in PHP that is used to create a new instance of the class DOMProcessingInstruction.
Syntax:
DOMProcessingInstruction DOMDocument::createProcessingInstruction( $target, $data )
Parameters: This function accepts two parameters as mentioned above and described below:
- $target: This parameter holds the target of the processing instruction.
- $data: This parameter holds the content of the processing instruction.
Return Value: This function returns the new DOMProcessingInstruction on success or FALSE on failure.
Below examples illustrate the DOMDocument::createProcessingInstruction() function in PHP:
Example 1:
php
<?php // Create a new DOMDocument $domDocument = new DOMDocument( '1.0' , 'iso-8859-1' );
// Use createProcessingInstruction() function to create // a new Processing Instruction node $domPI = $domDocument ->createProcessingInstruction( "name" , "GeeksforGeeks" );
// Append element to the document $domDocument ->appendChild( $domPI );
// Create XML document and display it echo $domDocument ->saveXML();
?> |
Output:
<?xml version="1.0" encoding="iso-8859-1"?> <?name GeeksforGeeks?>
Example 2:
php
<?php // Create a new DOMDocument $domDocument = new DOMDocument( '1.0' , 'iso-8859-1' );
// Use createProcessingInstruction() function to create // a new Processing Instruction node $domPI1 = $domDocument ->createProcessingInstruction( "name" ,
"GeeksforGeeks" );
$domPI2 = $domDocument ->createProcessingInstruction( "contact" ,
"Noida" );
$domPI3 = $domDocument ->createProcessingInstruction( "email" ,
"abc@geeksforgeeks.org" );
// Append element to the document $domDocument ->appendChild( $domPI1 );
$domDocument ->appendChild( $domPI2 );
$domDocument ->appendChild( $domPI3 );
// Create XML document and display it echo $domDocument ->saveXML();
?> |
Output:
<?xml version="1.0" encoding="iso-8859-1"?> <?name GeeksforGeeks?> <?contact Noida?> <?email abc@geeksforgeeks.org?>
Reference: https://www.php.net/manual/en/domdocument.createprocessinginstruction.php