PHP去掉从word直接粘贴过来的没有用格式的函数_PHP教程

function ClearHtml($content,$allowtags='') { 

mb_regex_encoding('UTF-8'); 
//replace MS special characters first 
$search = array('/‘/u', '/’/u', '/“/u', '/”/u', '/—/u'); 
$replace = array('\'', '\'', '"', '"', '-'); 
$content = preg_replace($search, $replace, $content); 
//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 
$content = html_entity_decode($content, 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($content, '/*') !== FALSE){ 
$content = mb_eregi_replace('#/\*.*?\*/#s', '', $content, '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) 
$content = preg_replace(array('/<([0-9]+)/'), array('< $1'), $content); 

$content = strip_tags($content, $allowtags); 
//eliminate extraneous whitespace from start and end of line, or anywhere there are two or more spaces, convert it to one 
$content = preg_replace(array('/^\s\s+/', '/\s\s+$/', '/\s\s+/u'), array('', '', ' '), $content); 
//strip out inline css and simplify style tags 
$search = array('#<(strong|b)[^>]*>(.*?)#isu', '#<(em|i)[^>]*>(.*?)#isu', '#]*>(.*?)#isu'); 
$replace = array('$2', '$2', '$1'); 
$content = preg_replace($search, $replace, $content); 

//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 */ 
$num_matches = preg_match_all("/\ 
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'; 
echo ClearHtml($content,'
'); 

/* 
得到的结果： 
《优伴户外旅行》--让旅行成为习惯！
越发忙碌的你，是否想给自己放个假？专注工作的你，是否还记得上一次锻炼是什么时候？优伴户外旅行，给你不一样的旅行体验：给心自由，便处处都是风景！
 
*/ 
?> 


http://www.bkjia.com/PHPjc/326185.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/326185.htmlTechArticle一般处理的方式有二种：1.通过编辑器的JS直接去除。2.提交到后台后，直接用程序去掉无效标签。下面我就分享一个通过PHP的处理方式，成...