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sql update是否成功更新了数据方法

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Jun 07, 2016 pm 05:51 PM

获取update更新的多少行的函数用：mysql_affected_rows($conn) 或者用mysqli_affected_rows($conn)

代码如下	复制代码
$sql = "update table a set aname='名字' where aid=88"; $r = $conn->query($sql); if ($r){ echo "错误以为这里就是数据做了更新，如果这个aid为88的数据不存在语句同样返回true。"; }

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