PHP去除文章的html格式

来源：互联网发布：算法分析与设计王晓东编辑：程序博客网时间：2024/05/16 02:41
function cutstr_html($string,$length=0,$ellipsis='…'){     $string=strip_tags($string);       $string=preg_replace('/\n/is','',$string);    $string=preg_replace('/ |　/is','',$string);       $string=preg_replace('/&nbsp;/is','',$string);       preg_match_all("/[\x01-\x7f]|[\xc2-\xdf][\x80-\xbf]|\xe0[\xa0-\xbf][\x80-\xbf]|[\xe1-\xef][\x80-\xbf][\x80-\xbf]|\xf0[\x90-\xbf][\x80-\xbf][\x80-\xbf]|[\xf1-\xf7][\x80-\xbf][\x80-\xbf][\x80-\xbf]/",$string,$string);        if(is_array($string)&&!empty($string[0])){        if(is_numeric($length)&&$length){            $string=join('',array_slice($string[0],0,$length)).$ellipsis;        }else{            $string=implode('',$string[0]);       }    }else{        $string='';        }   return $string;}function clearHtml($content){    $content = preg_replace("/<a[^>]*>/i", "", $content);    @$content = preg_replace("/<\/a>/i", "", $content);    $content = preg_replace("/<div[^>]*>/i", "", $content);    @$content = preg_replace("/<\/div>/i", "", $content);    $content = preg_replace("/<!--[^>]*-->/i", "", $content);//注释内容    $content = preg_replace("/style=.+?['|\"]/i", '', $content);//去除样式    $content = preg_replace("/class=.+?['|\"]/i", '', $content);//去除样式    $content = preg_replace("/id=.+?['|\"]/i", '', $content);//去除样式    $content = preg_replace("/lang=.+?['|\"]/i", '', $content);//去除样式    $content = preg_replace("/width=.+?['|\"]/i", '', $content);//去除样式    $content = preg_replace("/height=.+?['|\"]/i", '', $content);//去除样式    $content = preg_replace("/border=.+?['|\"]/i", '', $content);//去除样式    $content = preg_replace("/face=.+?['|\"]/i", '', $content);//去除样式    $content = preg_replace("/face=.+?['|\"]/", '', $content);//去除样式 只允许小写 正则匹配没有带 i 参数    return $content;}
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