PHP 7.0.6 Released

    DOMDocument::saveHTML

    (PHP 5, PHP 7)

    DOMDocument::saveHTML — Dumps the internal document into a string using HTML formatting

    Description

    public string DOMDocument::saveHTML ([ DOMNode $node = NULL ] )

    Creates an HTML document from the DOM representation. This function is usually called after building a new dom document from scratch as in the example below.

    Parameters

    node

    Optional parameter to output a subset of the document.

    Return Values

    Returns the HTML, or FALSE if an error occurred.

    Changelog

    Version Description
    5.3.6 The node parameter was added.

    Examples

    Example #1 Saving a HTML tree into a string

    <?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('This is the title');
    $text = $title->appendChild($text);

    echo     $doc->saveHTML();

    ?>

    See Also

    User Contributed Notes

    m at hbblogs daught calm
    7 years ago
    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()));
    alvaro at demogracia dot com
    5 years ago
    Since PHP/5.3.6, DOMDocument->saveHTML() accepts an optional DOMNode parameter similarly to DOMDocument->saveXML():

    http://bugs.php.net/bug.php?id=39771
    Bart Feenstra
    7 years ago
    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>"
    ?>
    tyson at clugg dot net
    11 years ago
    <?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>
    Anonymous
    4 months ago
    To solve the script tag problem just add an empty text node to the script node and DOMDocument will render <script src="your.js"></script> nicely.
    RiKdnUA at mail dot ru
    1 year ago
    Tested in PHP 5.2.9-2 and PHP 5.2.17.
    saveHTML() игнорирует свойство DOMDocument->encoding. Метод saveHTML() сохраняет html-документ в кодировке, которая указана в теге <meta> исходного (загруженного) html-документа.
    saveHTML() ignores property DOMDocument->encoding. Method saveHTML() saves the html-document encoding, which is specified in the tag <meta> source (downloaded) html-document.
    Example:
    file.html. Кодировка файла должна совпадать с указанной в теге <meta>. The encoding of the file must match the specified tag <meta>.
    <html><head>
    <meta http-equiv="Content-Type" content="text/html; charset=windows-1251">
    <title>Russian language</title></head>
    <body>Русский язык</body></html>

    <?php
    error_reporting    (-1);
    $document=new domDocument('1.0', 'UTF-8');
    $document->preserveWhiteSpace=false;
    $document->loadHTMLFile('file.html');
    $document->formatOutput=true;
    $document->encoding='UTF-8';
    $htm=$document->saveHTML();
    echo    "Записано байт. Recorded bytes: ".file_put_contents('file_new.html', $htm);
    ?>
    file_new.html будет в кодировке Windows-1251 (НЕ в UTF-8).
    file_new.html will be encoded in Windows-1251 (not in UTF-8).

    saveHTML() и file_put_contents() позволяют преодолеть недостаток метода saveHTMLFile().
    Смотрите мой комментарий к методу saveHTMLFile().
    saveHTML() and file_put_contents() allows you to overcome the lack of a method saveHTMLFile().
    See my comment on the method saveHTMLFile().
    http://php.net/manual/ru/domdocument.savehtmlfile.php
    Anonymous
    6 years ago
    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
    6 years ago
    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> */

    ?>
    mjaque at ilkebenson dot com
    8 years ago
    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
    8 years ago
    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
    8 years ago
    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>
    qrworld.net
    1 year ago
    In this post http://softontherocks.blogspot.com/2014/11/descargar-el-contenido-de-una-url_11.html I found a simple way to get the content of a URL with DOMDocument, loadHTMLFile and saveHTML().

    function getURLContent($url){
        $doc = new DOMDocument;
        $doc->preserveWhiteSpace = FALSE;
        @$doc->loadHTMLFile($url);
        return $doc->saveHTML();
    }
    Anonymous
    8 years ago
    <?php
    function getDOMString($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...
            '&quot;' => '&#34;',
            '&amp;' =>  '&#38;',
            '&apos;' => '&#39;',
            '&lt;' =>   '&#60;',
            '&gt;' =>   '&#62;',
            '&nbsp;' => '&#160;',
            '&copy;' => '&#169;',
            '&laquo;' => '&#171;',
            '&reg;' =>   '&#174;',
            '&raquo;' => '&#187;',
            '&trade;' => '&#8482;'
          ));
      return     $retval;
    }
    ?>
    Yajo
    5 years ago
    Another way to workaround the <script/> problem is putting a semicolon (;) inside the script element.
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