PHP | DOMDocument createProcessingInstruction() Function
The DOMDocument::createProcessingInstruction() function is an inbuilt function in PHP which is used to create a new instance of 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 programs illustrate the DOMDocument::createProcessingInstruction() function in PHP:
Program 1:
<?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?>
Program 2:
<?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 ans 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
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