自定义函数解决帝国cms的简介截取字符时出现html的问题

//去除HTML标记
function NoHTML($string){
$string = preg_replace("'<script[^>]*?>.*?</script>'si", "", $string);//去掉javascript
$string = preg_replace("'<[\/\!]*?[^<>]*?>'si", "", $string); //去掉HTML标记
$string = preg_replace("'([\r\n])[\s]+'", "", $string); //去掉空白字符
$string = preg_replace("'&(quot|#34);'i", "", $string); //替换HTML实体
$string = preg_replace("'&(amp|#38);'i", "", $string);
$string = preg_replace("'&(lt|#60);'i", "", $string);
$string = preg_replace("'&(gt|#62);'i", "", $string);
$string = preg_replace("'&(nbsp|#160);'i", "", $string);
return $string;
}

$r[smalltext]=esub(NoHTML($r[smalltext]),200,'......');
$listtemp='<li><strong><a href="[!--titleurl--]">[!--title--]</a></strong><p>[!--smalltext--]</p></li>';