清除HTML代码、空格、回车换行符

[php]代码库

function remove_html_tag($str){  //清除HTML代码、空格、回车换行符
		//trim 去掉字串两端的空格
		//strip_tags 删除HTML元素

		$str = trim($str);
		$str = @preg_replace('/<script[^>]*?>(.*?)<\/script>/si', '', $str);
		$str = @preg_replace('/<style[^>]*?>(.*?)<\/style>/si', '', $str);
		$str = @strip_tags($str,"");
		$str = @ereg_replace("\t","",$str);
		$str = @ereg_replace("\r\n","",$str);
		$str = @ereg_replace("\r","",$str);
		$str = @ereg_replace("\n","",$str);
		$str = @ereg_replace(" ","",$str);
		$str = @ereg_replace("&nbsp;","",$str);
		return trim($str);
	}