DOMDocument::save
There is not a <script /> problem.
When a script node does not have a child and it is dumped as XML, a self closing script node is proper. Any browser with XML support will do the right thing IF you send your document with the right mime type -- application/xhtml+xml
When you dump it via saveHTML() - the script node will not be self closing.
There is however a <source /> problem.
With the new html5 media tags, <source src="whatever"> is not closed in html - so when sending as html, do a preg_replace on the output of saveHTML() to get rid of the </source> tags which are invalid.
DOMDocument::saveHTML
(PHP 5)
DOMDocument::saveHTML — Sauvegarde le document interne dans une chaîne en utilisant un formatage HTML
Description
Crée un document HTML depuis une représentation DOM. Cette fonction est habituellement appelée après la construction d'un tout nouveau document DOM, comme dans l'exemple ci-dessous.
Liste de paramètres
-
node -
Paramètre optionnel pour afficher une portion du document.
Valeurs de retour
Retourne le code HTML ou FALSE si une erreur survient.
Historique
| Version | Description |
|---|---|
| 5.3.6 |
Le paramètre node a été ajouté.
|
Exemples
Exemple #1 Sauvegarde d'un arbre HTML dans une chaîne de caractères
<?php
$doc = new DOMDocument('1.0');
$root = $doc->createElement('html');
$root = $doc->appendChild($root);
$head = $doc->createElement('head');
$head = $root->appendChild($head);
$title = $doc->createElement('title');
$title = $head->appendChild($title);
$text = $doc->createTextNode('Ceci est le titre');
$text = $title->appendChild($text);
echo $doc->saveHTML();
?>
Voir aussi
- DOMDocument::saveHTML()
- DOMDocument::loadHTML() - Charge du code HTML à partir d'une chaîne de caractères
- DOMDocument::loadHTMLFile() - Charge du HTML à partir d'un fichier
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User Contributed Notes
DOMDocument::saveHTML
mpeters at domblogger dot net
03-Nov-2011 12:27
alvaro at demogracia dot com
29-Mar-2011 11:04
Since PHP/5.3.6, DOMDocument->saveHTML() accepts an optional DOMNode parameter similarly to DOMDocument->saveXML():
http://bugs.php.net/bug.php?id=39771
Yajo
24-Nov-2010 07:21
Another way to workaround the <script/> problem is putting a semicolon (;) inside the script element.
Anonymous
09-Feb-2010 07:52
If you want a simpler way to get around the <script> tag problem try:
<?php
$script = $doc->createElement ('script');\
// Creating an empty text node forces <script></script>
$script->appendChild ($doc->createTextNode (''));
$head->appendChild ($script);
?>
Anonymous
12-May-2009 07:35
To avoid script tags from being output as <script />, you can use the DOMDocumentFragment class:
<?php
$doc = new DOMDocument();
$doc -> loadXML($xmlstring);
$fragment = $doc->createDocumentFragment();
/* Append the script element to the fragment using raw XML strings (will be preserved in their raw form) and if succesful proceed to insert it in the DOM tree */
if($fragment->appendXML("<script type='text/javascript' src='$source'></script>") {
$xpath = new DOMXpath($doc);
$resultlist = $xpath->query("//*[local-name() = 'html']/*[local-name() = 'head']"); /* namespace-safe method to find all head elements which are childs of the html element, should only return 1 match */
foreach($resultlist as $headnode) // insert the script tag
$headnode->appendChild($fragment);
}
$doc->saveXML(); /* and our script tags will still be <script></script> */
?>
Bart Feenstra
18-Jan-2009 10:17
I am using this solution to prevent tags and the doctype from being added to the HTML string automatically:
<?php
$html = '<h1>Hello world!</h1>';
$html = '<div>' . $html . '</div>';
$doc = new DOMDocument;
$doc->loadHTML($html);
echo substr($doc->saveXML($doc->getElementsByTagName('div')->item(0)), 5, -6)
// Outputs: "<h1>Hello world!</h1>"
?>
m at hbblogs daught calm
18-Aug-2008 08:41
This method, as of 5.2.6, will automatically add <html><body> and <!DOCTYPE> tags to the document if they are missing, without asking whether you want them. In my application, I needed to use the DOM methods to manipulate just a fragment of html, so these tags were rather unhelpful.
Here's a simple hack to remove them in case, like me, all you wanted to do was perform a few operations on an HTML fragment.
$html_fragment = preg_replace('/^<!DOCTYPE.+?>/', '', str_replace( array('<html>', '</html>', '<body>', '</body>'), array('', '', '', ''), $dom->saveHTML()));
Anonymous
25-Apr-2008 08:15
<?php
function getDOMString($retNode) {
if (!$retNode) return null;
$retval = strtr($retNode-->ownerDocument->saveXML($retNode),
array(
'></area>' => ' />',
'></base>' => ' />',
'></basefont>' => ' />',
'></br>' => ' />',
'></col>' => ' />',
'></frame>' => ' />',
'></hr>' => ' />',
'></img>' => ' />',
'></input>' => ' />',
'></isindex>' => ' />',
'></link>' => ' />',
'></meta>' => ' />',
'></param>' => ' />',
'default:' => '',
// sometimes, you have to decode entities too...
'"' => '"',
'&' => '&',
''' => ''',
'<' => '<',
'>' => '>',
' ' => ' ',
'©' => '©',
'«' => '«',
'®' => '®',
'»' => '»',
'™' => '™'
));
return $retval;
}
?>
mjaque at ilkebenson dot com
19-Feb-2008 11:34
DOMDocument->saveXML() doesn't generate a proper XHTML format either.
There is a problem with "script" empty elements. For example:
This will be the code generated by saveXML, with an empty script tag.
<html>
<head>
<script type="text/JavaScript" src="myScript.js"/>
</head>
<body>
<p>I will not appear</p>
<script type="text/JavaScript">
alert("Not working");
</script>
</body>
</html>
I don't know if this is valid XHTML (W3C Validator doesn't complain), but both FF 2.0 and IE 6 will not render it properly. Both will use </script> as the closing tag for the first script causing js errors and ignoring in between elements.
You can post-process saveXML string in order to close empty tags with the following function:
<?php
function cerrarTag($tag, $xml){
$indice = 0;
while ($indice< strlen($xml)){
$pos = strpos($xml, "<$tag ", $indice);
if ($pos){
$posCierre = strpos($xml, ">", $pos);
if ($xml[$posCierre-1] == "/"){
$xml = substr_replace($xml, "></$tag>", $posCierre-1, 2);
}
$indice = $posCierre;
}
else break;
}
return $xml;
}
?>
At least script and select empty elements should be closed. This example shows how it can be used:
<?php
define("CABECERA_XHTML", '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">');
$xhtml = $docXML->saveXML($docXML->documentElement);
$xhtml = cerrarTag("script", $xhtml);
$xhtml = cerrarTag("select", $xhtml);
$xhtml = CABECERA_XHTML."\n".$xhtml;
echo $xhtml;
?>
archanglmr at yahoo dot com
27-Nov-2007 03:28
If created your DOMDocument object using loadHTML() (where the source is from another site) and want to pass your changes back to the browser you should make sure the HTTP Content-Type header matches your meta content-type tags value because modern browsers seem to ignore the meta tag and trust just the HTTP header. For example if you're reading an ISO-8859-1 document and your web server is claiming UTF-8 you need to correct it using the header() function.
<?php
header('Content-Type: text/html; charset=iso-8859-1');
?>
xoplqox
20-Nov-2007 11:07
XHTML:
If the output is XHTML use the function saveXML().
Output example for saveHTML:
<select name="pet" size="3" multiple>
<option selected>mouse</option>
<option>bird</option>
<option>cat</option>
</select>
XHTML conform output using saveXML:
<select name="pet" size="3" multiple="multiple">
<option selected="selected">mouse</option>
<option>bird</option>
<option>cat</option>
</select>
tyson at clugg dot net
21-Apr-2005 05:44
<?php
// Using DOM to fix sloppy HTML.
// An example by Tyson Clugg <tyson@clugg.net>
//
// vim: syntax=php expandtab tabstop=2
function tidyHTML($buffer)
{
// load our document into a DOM object
$dom = @DOMDocument::loadHTML($buffer);
// we want nice output
$dom->formatOutput = true;
return($dom->saveHTML());
}
// start output buffering, using our nice
// callback funtion to format the output.
ob_start("tidyHTML");
?>
<html>
<p>It's like comparing apples to oranges.
</html>
<?php
// this will be called implicitly, but we'll
// call it manually to illustrate the point.
ob_end_flush();
?>
The above code takes out sloppy HTML:
<html>
<p>It's like comparing apples to oranges.
</html>
And cleans it up to the following:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<html><body><p>It's like comparing apples to oranges.
</p></body></html>