The XMLWriter::startCdata() function is an inbuilt function in PHP which is used to start the CDATA. This element then needs to be closed with XMLWriter::endCdata() function. CDATA is a block of text which is not parsed by the parser but are recognized as markup.
Syntax:
bool XMLWriter::startCdata( void )
Parameters:This function doesn’t accept any parameter.
Return Value: This function returns TRUE on success or FALSE on failure.
Below examples illustrate the XMLWriter::startCdata() function in PHP:
Example 1:
<?php // Create a new XMLWriter instance $writer = new XMLWriter(); // Create the output stream as PHP // Start the document $writer->startDocument('1.0', 'UTF-8'); // Start a element $writer->startElement('h1'); // Start the Cdata $writer->startCdata(); // Add value to the Cdata $writer->text('value'); // End the Cdata $writer->endCdata(); // End the element $writer->endElement(); // End the document $writer->endDocument(); ?> |
Output:
<?xml version="1.0" encoding="UTF-8"?> <h1><![CDATA[value]]></h1>
Example 2:
<?php // Create a new XMLWriter instance $writer = new XMLWriter(); // Create the output stream as PHP // Start the document $writer->startDocument('1.0', 'UTF-8'); // Start a element $writer->startElement('p'); // Start the Cdata $writer->startCdata(); // Add value to the Cdata which is not // going to be visible on the webpage $writer->text('This will be secret text, not visible in browser'); // End the Cdata $writer->endCdata(); // Add value to the element $writer->text('neveropen, portal for Computer Science.'); // End the element $writer->endElement(); // End the document $writer->endDocument(); ?> |
Output:
<?xml version="1.0" encoding="UTF-8"?>
<p><![CDATA[This will be secret text, not visible in browser]]>
neveropen, portal for Computer Science.
</p>
Reference: https://www.php.net/manual/en/function.xmlwriter-start-cdata.php
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