The DOMCharacterData::deleteData() function is an inbuilt function in PHP which is used to remove a range of characters from the node.
Syntax:
void DOMCharacterData::deleteData( int $offset, int $count )
Parameters: This function accept two parameters as mentioned above and described below:
- $offset: It specifies the starting position to deleted data.
- $count: It specifies the number of characters to delete.
Return Value: This function does not return any value.
Below given programs illustrate the DOMCharacterData::deleteData() function in PHP:
Program 1:
<?php   // Create a new DOM Document $dom = new DOMDocument('1.0', 'iso-8859-1');   // Create a div element $element = $dom->appendChild(new DOMElement('div'));   // Create a DOMCdataSection $text = $element->appendChild(         new DOMCdataSection('DOMC Data'));   // Delete all data $text->deleteData(0, 9);   echo $dom->saveXML(); ?> |
<?xml version="1.0" encoding="iso-8859-1"?> <div><![CDATA[]]></div>
Output: Use Chrome Developer tools to view the HTML or press Ctrl+U
Program 2:
<?php   // Create a new DOM Document $dom = new DOMDocument('1.0', 'iso-8859-1');   // Create a div element $element = $dom->appendChild(new DOMElement('div'));   // Create a DOMCdataSection $text = $element->appendChild(         new DOMCdataSection('DOMC Data'));   // Delete all data $text->deleteData(0, 9);   // Adding new data again $text->insertData(0, 'New data');   echo $dom->saveXML(); ?> |
<?xml version="1.0" encoding="iso-8859-1"?> <div><![CDATA[New data]]></div>
Output:
Reference: https://www.php.net/manual/en/domcharacterdata.deletedata.php
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