DOMDocument::createCDATASection

(PHP 5, PHP 7)

DOMDocument::createCDATASection — Create new cdata node

说明

public DOMCDATASection DOMDocument::createCDATASection ( string $data )

This function creates a new instance of class DOMCDATASection. 此节点出现在文档中，除非是用诸如 DOMNode->appendChild() 等函数来将其插入。

参数

data: The content of the cdata.

返回值

The new DOMCDATASection or FALSE if an error occurred.

参见

DOMNode::appendChild() - Adds new child at the end of the children
DOMDocument::createAttribute() - Create new attribute
DOMDocument::createAttributeNS() - Create new attribute node with an associated namespace
DOMDocument::createComment() - Create new comment node
DOMDocument::createDocumentFragment() - Create new document fragment
DOMDocument::createElement() - Create new element node
DOMDocument::createElementNS() - Create new element node with an associated namespace
DOMDocument::createEntityReference() - Create new entity reference node
DOMDocument::createProcessingInstruction() - Creates new PI node
DOMDocument::createTextNode() - Create new text node

用户评论:

[#1] Marc info[at]braincast.nl [2011-03-08 01:55:28]

Here's some code that takes an associative array and prints it asXML() but creates CDATA sections for each string

<?php class SimpleXMLExtended extends SimpleXMLElement{ public function addCData($string){ $dom = dom_import_simplexml($this); $cdata = $dom->ownerDocument->createCDATASection($string); $dom->appendChild($cdata); } } function assocArrayToXML($root_element_name,$ar){ $xml = new SimpleXMLExtended("<?xml version=\"1.0\"?><{$root_element_name}></{$root_element_name}>");
$f = create_function('$f,$c,$a','
foreach($a as $k=>$v) {
if(is_array($v)) {
if (!is_numeric($k))$ch=$c->addChild($k);
else $ch = $c->addChild(substr($c->getName(),0,-1));
$f($f,$ch,$v);
} else {
if (is_numeric($v)){ $c->addChild($k, $v);
}else{$n = $c->addChild($k); $n->addCData($v);}
}
}');
$f($f,$xml,$ar);
return $xml->asXML();
}

$result = array("title"=>"CDATA Sample");
$result['items'] = array();
$result['items'][] = array('title'=>'Some string', 'number' => 1);
$result['items'][] = array('title'=>'Some string', 'number' => 2);
$result['items'][] = array('title'=>'Some string', 'number' => 3);

echo assocArrayToXML('result',$result);
?>

The is_numeric check could be changed by a more elaborate regular expression to check if the string is actually xml unsafe but this worked for me.

[#2] jesdisciple dot FOO at gmail dot BAR dot com [2010-07-08 04:44:18]

If you would like to refer to the documentation for the class of the returned object, see http://www.php.net/manual/en/class.domcharacterdata.php

[#3] info at troptoek dot com [2008-03-24 21:40:09]

A common issue seems to be adding javascript to CDATA and the browser throwing a javascript error. To ensure the javascript works use the following code when adding CDATA:

<?php function appendCdata($appendToNode, $text) { if (strtolower($appendToNode->nodeName) == 'script') { // Javascript hack $cm = $appendToNode->ownerDocument->createTextNode("\n//"); $ct = $appendToNode->ownerDocument->createCDATASection("\n" . $text . "\n//"); $appendToNode->appendChild($cm); $appendToNode->appendChild($ct); } else { // Normal CDATA node $ct = $appendToNode->ownerDocument->createCDATASection($text); $appendToNode->appendChild($ct); } } ?>
The result should be:

<script type="text/javascript">
//<![CDATA[
function someJsText() {
document.write('Some js with <a href="#">HTML</a> content');
}
//]]></script>

[#4] loathsome [2007-08-04 14:28:02]

Here's a function that will create a CDATA-section around a string coming from SimpleXML.

<?php function sxml_cdata($path, $string){ $dom = dom_import_simplexml($path); $cdata = $dom->ownerDocument->createCDATASection($string); $dom->appendChild($cdata); } ?>