去除重复的数据。
<br /> //查询A表最新添加的文章<br /> $sql="select id,biaoti,neirong from a order by id desc limit 15";<br /> $c=$mysqli->query($sql);<br /> $l='';<br /> while($c=$csql->fetch_assoc()){<br /> $l.=$c['biaoti'].'--'.$c['id'].'--'$c['neirong'].'<br>';<br /> }<br />
很简单,以上就是把最新添加的文字按ID倒序排序!
求解: 如 列出的15条记录中,其中 biaoti 会有出现重复的问题 如下
标题biaoti 内容neirong id
香港新闻 特特 15
国际新闻 郭德纲 14
国际新闻 郭德纲的 13
国际新闻 退热贴 12
国内新闻 成功典范 11
广东新闻 郭德纲儿太热 10
广西新闻 二套二厅 9
上海新闻 二套二厅 8
从上边的列表看来,国际新闻重复出现3次了。有没办法,去掉2条,保留一条。

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