PHP | DOMNode C14N() Function
Last Updated :
26 Feb, 2020
The DOMNode::C14N() function is an inbuilt function in PHP which is used to convert a node into string.
Syntax:
string DOMNode::C14N( bool $exclusive,
bool $with_comments, array $xpath, array $ns_prefixes )
Parameters: This function accepts four parameters as mentioned above and described below:
- $exclusive (Optional): It specifies whether to enable exclusive parsing of only the nodes matched by the provided xpath or namespace prefixes.
- $with_comments (Optional): It specifies whether to retain comments in output.
- $xpath (Optional): It specifies an array of xpaths to filter the nodes by.
- $ns_prefixes (Optional): It specifies an array of namespace prefixes to filter the nodes by.
Return Value: This function returns canonicalized nodes as a string or FALSE on failure.
Below examples illustrate the DOMNode::C14N() function in PHP:
Example 1:
<?php
$doc = new DOMDocument();
$doc->loadXML('<html></html>');
$h1 = $doc->createElement('h1');
$doc->documentElement->appendChild($h1);
$stringdata = $doc->C14N();
echo $stringdata;
?>
|
Output:
<html><h1></h1></html>
Example 2:
<?php
$doc = new DOMDocument();
$doc->loadXML('<html><!-- This is a comment --></html>');
$h1 = $doc->createElement('h1');
$doc->documentElement->appendChild($h1);
$stringdata = $doc->C14N(false, true);
echo 'With Comments: <br>';
echo htmlentities($stringdata);
$stringdata = $doc->C14N(false, false);
echo '<br>Without Comments: <br>';
echo htmlentities($stringdata);
?>
|
Output:
With Comments:
<html><!-- This is a comment --><h1></h1></html>
Without Comments:
<html><h1></h1></html>
Reference: https://www.php.net/manual/en/domnode.c14n.php
Like Article
Suggest improvement
Share your thoughts in the comments
Please Login to comment...