删除样式属性

Question

我不使用正则表达式不太好，但与PHP，我想删除HTML标签style属性在的到来，从TinyMCE的回一个字符串。

因此改变<p style="...">Text</p>只是香草<p>Test</p>。

我怎么会用类似的preg_replace()功能实现这一目标？

Answer 1

务实的正则表达式(<[^>]+) style=".*?"将在所有合理的情况下解决这个问题。本场比赛的一部分，是不是第一个捕获组应该被删除，就像这样：

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

匹配一个<后面跟着一个或多个“不>”直到我们来到space和的style="..."部分。 /i甚至可以使用STYLE="..."。将此匹配替换为$1，这是捕获的组。如果标签不包含style="..."，它将保持原样。

Answer 2

你可以处理它的客户端，最简单的是用jQuery。喜欢的东西：

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

Answer 3

在这里你去：

<?php 

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

?> 

顺便说一句，因为被别人指出的那样，正则表达式，不建议这一点。

Answer 4

像这样的东西应该工作（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(); 

Answer 5

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; 
} 

Answer 6

我对@Mayerln的功能评价。它确实工作，但DOMDocument真的与编码。这里是我的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(); 
} 

Answer 7

除了洛伦佐马尔康的回答是：

使用preg_replace选择不同的样式属性的一切：

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