Question

我根据用户输入创建XML。其中一个xml节点有一个CDATA部分。如果插入CDATA部分的其中一个字符是'特殊'（我认为是控制字符），则整个xml变为无效。

示例：

$dom = new DOMDocument('1.0', 'utf-8');
$dom->appendChild($dom->createElement('root'))
    ->appendChild($dom->createCDATASection(
        "This is some text with a SOH char \x01."
    ));

$test = new DOMDocument;
$test->loadXml($dom->saveXML());
echo $test->saveXml();

将给出

Warning: DOMDocument::loadXML(): CData section not finished
This is some text with a SOH cha in Entity, line: 2 in /newfile.php on line 17

Warning: DOMDocument::loadXML(): PCDATA invalid Char value 1 in Entity, line: 2 in /newfile.php on line 17

Warning: DOMDocument::loadXML(): Sequence ']]>' not allowed in content in Entity, line: 2 in /newfile.php on line 17

Warning: DOMDocument::loadXML(): Sequence ']]>' not allowed in content in Entity, line: 2 in /newfile.php on line 17

Warning: DOMDocument::loadXML(): internal errorExtra content at the end of the document in Entity, line: 2 in /newfile.php on line 17
<?xml version="1.0"?>

有没有一种好的方法在php中确保CDATA部分有效？

Answer 1

range of characters允许的CDATA section是

#x9 | #xA | #xD | [#x20-#xD7FF] | [#xE000-#xFFFD] | [#x10000-#x10FFFF]

因此，您必须清理字符串以仅包含这些字符。

Answer 2

因为“\ x01”不是可打印字符。所以引起警告。您可以像这样解决这个问题：

$dom = new DOMDocument('1.0', 'utf-8');
$dom->appendChild($dom->createElement('root'))
->appendChild($dom->createCDATASection(
    urlencode("This is some text with a SOH char \x01.")
));

$test = new DOMDocument;
$test->loadXml($dom->saveXML());
echo urldecode($test->saveXml());

Answer 3

使用戈登的答案，我做了：

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<!-- Platform rope -->
    <div class="rope_1">
    </div>

    <div class="rope_2">
    </div>

    <div class="rope_3">
    </div>

    <div class="rope_4">
    </div>

使用类似：

Answer 4

查看simplexml_load_file（http://php.net/manual/en/function.simplexml-load-file.php）LIBXML_NOCDATA选项（http://www.php.net/manual/en/libxml.constants.php）。这很可能会回答你的问题。

如何在PHP中验证XML的CDATA部分

4 个答案: