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PHP去掉从word直接粘贴过来的没有用格式的函数_php实例

程序员文章站 2022-05-24 22:45:13
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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,成功率可能不是100%。这程序也是在PHP官网上看到的,就顺便粘贴过来了。
复制代码 代码如下:

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', '', $content, 'm');
}
//introduce a space into any arithmetic expressions that could be caught by strip_tags so that they won't be
//'$content = preg_replace(array('/
$content = strip_tags($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("/\

《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*,便处处都是风景!';
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*,便处处都是风景!
*/
?>
相关标签: 没有用格式