Question

我有一个包含html的字符串。我怎样才能使字符串变得干净，以便除了标签之外的所有内容都被编码？例如：

$foo = '<div class="link">Here\'s is a link: "<a href="http://www.example.com">Doors & windows</a>'</div>';

我想将其转换为

$out = '<div class="link">Here\'s is a link: &quot;<a href="http://www.example.com">Doors &amp; windows</a>&quot;</div>';

Answer 1

首先用另一个标记替换括号，调用htmlentities，然后转换回来。

$html = str_replace("<","***OPENBRACKET***",$html);
$html = str_replace(">","***CLOSEBRACKET***",$html);

$html = htmlentities($html);

$html = str_replace("***OPENBRACKET***","<",$html);
$html = str_replace("***CLOSEBRACKET***",">",$html);

Answer 2

此代码段显示了一个将加载某些xml的函数（确保至少打开的标签有一个关闭挂件等，否则您将看到/读取一些错误）然后将htmlentities应用到所有文本节点上。我实际上并不知道你需要什么，但可能会让你开心：

$foo = '<div class="link">Here\'s is a link: <a href="http://www.example.com">Doors & windows</a></div>';

echo text_htmlentities(utf8_encode($foo));

/**
 * add htmlentities onto the text-nodes of an
 * xml fragment.
 * 
 * @param string $foo xml fragment (utf8)
 * @return string
 */
function text_htmlentities($foo) {
    $foo = str_replace('&', '&amp;', $foo);
    $dom = new DOMDocument;
    $dom->loadXml($foo);
    $xpath = new DomXpath($dom);
    foreach($xpath->query('//text()') as $node) {
        $node->nodeValue = htmlentities($node->nodeValue, ENT_QUOTES, 'UTF-8', false);
    }
    return str_replace('&amp;','&', $dom->saveXml($dom->firstChild));
}

输出：

<div class="link">Here&#039;s is a link: <a href="http://www.example.com">Doors &amp; windows</a></div>

Answer 3

尝试使用html_entity_decode功能

php中的html字符串编码问题

3 个答案: