我正在尝试隐藏用 Php word 格式化的 HTML。

我用summernote创建了一个html表单。 Summernote 允许用户格式化文本。此文本使用 html 标签保存到数据库中。

接下来使用phpWord，我想将捕获的信息输出到word文档中。请看下面的代码:

$rational = DB::table('rationals')->where('qualificationheader_id',$qualId)->value('rational');

 $wordTest = new \PhpOffice\PhpWord\PhpWord();
        $newSection = $wordTest->addSection();
        $newSection->getStyle()->setPageNumberingStart(1);


    \PhpOffice\PhpWord\Shared\Html::addHtml($newSection,$rational);
    $footer = $newSection->addFooter();
    $footer->addText($curriculum->curriculum_code.'-'.$curriculum->curriculum_title);



    $objectWriter = \PhpOffice\PhpWord\IOFactory::createWriter($wordTest,'Word2007');
    try {
        $objectWriter->save(storage_path($curriculum->curriculum_code.'-'.$curriculum->curriculum_title.'.docx'));
    } catch (Exception $e) {
    }

    return response()->download(storage_path($curriculum->curriculum_code.'-'.$curriculum->curriculum_title.'.docx'));

<p class="MsoNormal"><span lang="EN-GB" style="background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><span style="font-family: Arial;">The want for this qualification originated from the energy crisis in
South Africa in 2008 together with the fact that no existing qualifications
currently focuses on energy efficiency as one of the primary solutions.  </span><span style="font-family: Arial;">The fact that energy supply remains under
severe pressure demands the development of skills sets that can deliver the
necessary solutions.</span><span style="font-family: Arial;">  </span><o:p></o:p></span></p><p class="MsoNormal"><span lang="EN-GB" style="background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; font-family: Arial;">This qualification addresses the need from Industry to acquire credible
and certified professionals with specialised skill sets in the energy
efficiency field. The need for this skill set has been confirmed as a global
requirement in few of the International commitment to the reduction of carbon

ErrorException (E_WARNING) DOMDocument::loadXML(): Namespace prefix o on p is not defined in Entity, line: 1

最佳答案

问题

解析器提示您的文本在元素标签中包含命名空间，更具体地说是标签上的前缀 <o:p> (其中 o: 是前缀)。好像是some kind of formatting for Word .

重现问题

为了重现这个问题，我不得不挖一点，因为不是 PHPWord 抛出异常，而是 DOMDocument PHPWord 正在使用。下面的代码使用 same parsing method PHPWord 正在使用并且应该输出关于代码的所有警告和通知。

# Make sure to display all errors
ini_set("display_errors", "1");
error_reporting(E_ALL);

$html = '<o:p>Foo <o:b>Bar</o:b></o:p>';

# Set up and parse the code
$doc = new DOMDocument();
$doc->loadXML($html); # This is the line that's causing the warning.
# Print it back
echo $doc->saveXML();

class TagPrefixFixer {

    /**
      * @desc Removes all prefixes from tags
      * @param string $xml The XML code to replace against.
      * @return string The XML code with no prefixes in the tags.
    */
    public static function Clean(string $xml) {
        $doc = new DOMDocument();
        /* Load the XML */
        $doc->loadXML($xml,
            LIBXML_HTML_NOIMPLIED | # Make sure no extra BODY
            LIBXML_HTML_NODEFDTD |  # or DOCTYPE is created
            LIBXML_NOERROR |        # Suppress any errors
            LIBXML_NOWARNING        # or warnings about prefixes.
        );
        /* Run the code */
        self::removeTagPrefixes($doc);
        /* Return only the XML */
        return $doc->saveXML();
    }

    private static function removeTagPrefixes(DOMNode $domNode) {
        /* Iterate over each child */
        foreach ($domNode->childNodes as $node) {
            /* Make sure the element is renameable and has children */
            if ($node->nodeType === 1) {
                /* Iterate recursively over the children.
                 * This is done before the renaming on purpose.
                 * If we rename this element, then the children, the element
                 * would need to be moved a lot more times due to how 
                 * renameNode works. */
                if($node->hasChildNodes()) {
                    self::removeTagPrefixes($node);
                }
                /* Check if the tag contains a ':' */
                if (strpos($node->tagName, ':') !== false) {
                    print $node->tagName;
                    /* Get the last part of the tag name */
                    $parts = explode(':', $node->tagName);
                    $newTagName = end($parts);
                    /* Change the name of the tag */
                    self::renameNode($node, $newTagName);
                }
            }
        }
    }

    private static function renameNode($node, $newName) {
        /* Create a new node with the new name */
        $newNode = $node->ownerDocument->createElement($newName);
        /* Copy over every attribute from the old node to the new one */
        foreach ($node->attributes as $attribute) {
            $newNode->setAttribute($attribute->nodeName, $attribute->nodeValue);
        }
        /* Copy over every child node to the new node */
        while ($node->firstChild) {
            $newNode->appendChild($node->firstChild);
        }
        /* Replace the old node with the new one */
        $node->parentNode->replaceChild($newNode, $node);
    }
}

$xml = '<o:p>Foo <o:b>Bar</o:b></o:p>';
print TagPrefixFixer::Clean($xml);

<?xml version="1.0"?>
<p>Foo <b>Bar</b></p>

function cleanHTML($html) {
    $doc = new DOMDocument();
    /* Load the HTML */
    $doc->loadHTML($html,
            LIBXML_HTML_NOIMPLIED | # Make sure no extra BODY
            LIBXML_HTML_NODEFDTD |  # or DOCTYPE is created
            LIBXML_NOERROR |        # Suppress any errors
            LIBXML_NOWARNING        # or warnings about prefixes.
    );
    /* Immediately save the HTML and return it. */
    return $doc->saveHTML();
}

$html = '<o:p>Foo <o:b>Bar</o:b></o:p>';
print cleanHTML($html);

<p>Foo <b>Bar</b></p>

function addNamespaces($xml) {
    $root = '<w:wordDocument
        xmlns:w="http://schemas.microsoft.com/office/word/2003/wordml"
        xmlns:wx="http://schemas.microsoft.com/office/word/2003/auxHint"
        xmlns:o="urn:schemas-microsoft-com:office:office">';
    $root .= $xml;
    $root .= '</w:wordDocument>';
    return $root;
}

$xml = '<o:p>Foo <o:b>Bar</o:b></o:p>';
print addNamespaces($xml);

<w:wordDocument
    xmlns:w="http://schemas.microsoft.com/office/word/2003/wordml"
    xmlns:wx="http://schemas.microsoft.com/office/word/2003/auxHint"
    xmlns:o="urn:schemas-microsoft-com:office:office">
    <o:p>Foo <o:b>Bar</o:b></o:p>
</w:wordDocument>

// Show the default reporting except from warnings
error_reporting(E_ALL & ~E_NOTICE & ~E_STRICT & ~E_DEPRECATED & ~E_WARNING);

$text_after = preg_replace('/[a-zA-Z]+:([a-zA-Z]+[=>])/', '$1', $text_before);

$text = '<o:p>Foo <o:b>Bar</o:b></o:p>';
$text = preg_replace('/[a-zA-Z]+:([a-zA-Z]+[=>])/', '$1', $text);
echo $text; // Outputs '<p>Foo <b>Bar</b></p>'

关于php - 带有 PhpWord 的隐蔽 HTML:错误 - DOMDocument::loadXML():p 上的命名空间前缀 o 未在实体中定义，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/52483285/