从HTML标签中删除样式属性

I'm not too good with regular expressions, but with PHP I'm wanting to remove the style attribute from HTML tags in a string that's coming back from TinyMCE.

我不太擅长正则表达式，但是对于PHP，我想从TinyMCE返回的字符串中的HTML标记中删除style属性。

So change <p style="...">Text</p> to just vanilla <p>Test</p>.

所以改变< p风格= "…">文本

到香草

检验

。

How would I achieve this with something like the preg_replace() function?

如何使用preg_replace()函数实现这一点?

7 个解决方案

#1

109

The pragmatic regex (<[^>]+) style=".*?" will solve this problem in all reasonable cases. The part of the match that is not the first captured group should be removed, like this:

务实的正则表达式(< =[^ >]+)风格”。* ?”将在所有合理的情况下解决这个问题。应该删除不属于第一个捕获组的部分，如下所示:

$output = preg_replace('/(<[^>]+) style=".*?"/i', '$1', $input);

Match a < followed by one or more "not >" until we come to space and the the style="..." part. The /i makes it work even with STYLE="...". Replace this match with $1, which is the captured group. It will leave the tag as is, if the tag doesn't include style="...".

匹配a <后面跟着一个或多个“not> ”，直到我们进入空格和style="…"部分。The /i make it works even with STYLE="…"。以$1替换此匹配，这是被捕获的组。如果标签不包含style="…"，那么标签将保持原样。

#2

Something like this should work (untested code warning):

类似这样的东西应该可以工作(未经测试的代码警告):

<?php

$html = '<p style="asd">qwe</p><br /><p class="qwe">qweqweqwe</p>';

$domd = new DOMDocument();
libxml_use_internal_errors(true);
$domd->loadHTML($html);
libxml_use_internal_errors(false);

$domx = new DOMXPath($domd);
$items = $domx->query("//p[@style]");

foreach($items as $item) {
  $item->removeAttribute("style");
}

echo $domd->saveHTML();

#3

I commented on @Mayerln 's function. It does work but DOMDocument really stuffs with encoding. Here's my simplehtmldom version

我评论了@Mayerln的函数。它确实有用，但是DOMDocument确实是用编码填充的。这是我的simplehtmldom版本

function stripAttributes($html,$attribs) {
    $dom = new simple_html_dom();
    $dom->load($html);
    foreach($attribs as $attrib)
        foreach($dom->find("*[$attrib]") as $e)
            $e->$attrib = null; 
    $dom->load($dom->save());
    return $dom->save();
}

#4

Here you go:

给你:

<?php

$html = '<p style="border: 1px solid red;">Test</p>';
echo preg_replace('/<p style="(.+?)">(.+?)<\/p>/i', "<p>$2</p>", $html);

?>

By the way, as pointed out by others, regex are not suggested for this.

顺便说一下，正如其他人指出的，regex不建议这样做。

#5

I use this:

我用这个:

function strip_word_html($text, $allowed_tags = '<a><ul><li><b><i><sup><sub><em><strong><u><br><br/><br /><p><h2><h3><h4><h5><h6>')
{
    mb_regex_encoding('UTF-8');
    //replace MS special characters first
    $search = array('/&lsquo;/u', '/&rsquo;/u', '/&ldquo;/u', '/&rdquo;/u', '/&mdash;/u');
    $replace = array('\'', '\'', '"', '"', '-');
    $text = preg_replace($search, $replace, $text);
    //make sure _all_ html entities are converted to the plain ascii equivalents - it appears
    //in some MS headers, some html entities are encoded and some aren't
    //$text = html_entity_decode($text, ENT_QUOTES, 'UTF-8');
    //try to strip out any C style comments first, since these, embedded in html comments, seem to
    //prevent strip_tags from removing html comments (MS Word introduced combination)
    if(mb_stripos($text, '/*') !== FALSE){
        $text = mb_eregi_replace('#/\*.*?\*/#s', '', $text, 'm');
    }
    //introduce a space into any arithmetic expressions that could be caught by strip_tags so that they won't be
    //'<1' becomes '< 1'(note: somewhat application specific)
    $text = preg_replace(array('/<([0-9]+)/'), array('< $1'), $text);
    $text = strip_tags($text, $allowed_tags);
    //eliminate extraneous whitespace from start and end of line, or anywhere there are two or more spaces, convert it to one
    $text = preg_replace(array('/^\s\s+/', '/\s\s+$/', '/\s\s+/u'), array('', '', ' '), $text);
    //strip out inline css and simplify style tags
    $search = array('#<(strong|b)[^>]*>(.*?)</(strong|b)>#isu', '#<(em|i)[^>]*>(.*?)</(em|i)>#isu', '#<u[^>]*>(.*?)</u>#isu');
    $replace = array('<b>$2</b>', '<i>$2</i>', '<u>$1</u>');
    $text = preg_replace($search, $replace, $text);
    //on some of the ?newer MS Word exports, where you get conditionals of the form 'if gte mso 9', etc., it appears
    //that whatever is in one of the html comments prevents strip_tags from eradicating the html comment that contains
    //some MS Style Definitions - this last bit gets rid of any leftover comments */
    $num_matches = preg_match_all("/\<!--/u", $text, $matches);
    if($num_matches){
        $text = preg_replace('/\<!--(.)*--\>/isu', '', $text);
    }
    $text = preg_replace('/(<[^>]+) style=".*?"/i', '$1', $text);
return $text;
}

#6

In addition to Lorenzo Marcon's answer:

除了Lorenzo Marcon的回答:

Using preg_replace to select everything except style attribute:

使用preg_replace选择除style属性外的所有内容:

$html = preg_replace('/(<p.+?)style=".+?"(>.+?)/i', "$1$2", $html);

#7

-8

You could handle it client side, the easiest would be with jQuery. Something like:

您可以处理it客户端，最简单的方法是使用jQuery。喜欢的东西:

$("#tinyMce p").removeAttr("style");

#1

109