php网站描述提取百度编辑器编辑器纯文本内容并截取字符

$result = strip_tags($result);//剥去字符串中的 HTML 标签

$result= str_replace(array("\r","\n","\s","\t"),'',$result);

$result = mb_substr($result,0,50,'utf-8');//截取输出