The DOMCharacterData::insertData() function is an inbuilt function in PHP which is used to insert a string at the specified 16-bit unit offset.
Syntax:
void DOMCharacterData::insertData( int $offset, string $data )
Parameters: This function accept two parameters as mentioned above and described below:
- $offset: It specifies the starting point to insert data.
- $data: It specifies the data to insert.
Return Value: This function does not return any value.
Below given programs illustrate the DOMCharacterData::insertData() 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( 'GeeksGeeks' )); // Insert 'For' between Geeks and Geeks $text ->insertData(5, 'For' ); echo $dom ->saveXML(); ?> |
Output:
<?xml version="1.0" encoding="iso-8859-1"?> <div><![CDATA[GeeksForGeeks]]></div>
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( 'My DOM Characters' )); // Insert in the beginning $text ->insertData(0, 'Beginning' ); echo $dom ->saveXML(); ?> |
Output:
<?xml version="1.0" encoding="iso-8859-1"?> <div><![CDATA[BeginningMy DOM Characters]]></div>
Program 3:
<?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( 'My DOM Characters' )); // Insert in the end $text ->insertData(17, 'End' ); echo $dom ->saveXML(); ?> |
Output:
<?xml version="1.0" encoding="iso-8859-1"?> <div><![CDATA[My DOM CharactersEnd]]></div>
Reference: https://www.php.net/manual/en/domcharacterdata.insertdata.php