为什么无法使用php中mysqli的准备语句进行数据库中数据的查询(绑定参数或者绑定结果),项目急用!
代码如下:
<br /> <?php<br /> /*<br /> 利用mysqli扩展来绑定结果<br /> */<br /> //新建服务器连接<br /> $mysqli=new mysqli('localhost','root','root','searcdb');<br /> //创建查询<br /> $query="SELECT adminName,adminPwd FROM admininfo";<br /> //创建语句对象<br /> $stmt=$mysqli->stmt_init();<br /> //为执行准备语句<br /> $stmt->prepare($query);<br /> //执行语句<br /> $stmt->execute();<br /> //绑定结果参数<br /> $stmt->bind_result($name,$pwd);<br /> //循环处理结果并输出数据<br /> while($stmt->fetch()){<br /> printf("%s, %s, %s <br />",$name,$pwd);<br /> }<br /> //恢复语句资源<br /> $stmt->close();<br /> //关闭连接<br /> $mysqli->close();<br /> ?><br />这个语句到底有什么问题啊 我直接做增删改查是可以,但是无论是采用mysqli绑定结果或者绑定参数的方法都不行,求大侠指导啊,公司实习很快就要用它做项目了,急用急用!!
------解决方案--------------------
printf("%s, %s, %s
",$name,$pwd); ???
少了一个参数
或者说多了一个格式符
------解决方案--------------------
多一个占位符。你不是只有两个参数吗?
------解决方案--------------------
少了一行代码,要把查询结果临时存储才能使用。
仅供参考:
<br /> function selectLink($oid){<br /> $sql = "select o.oid,l.lid,c.cid,comName,comPrice,ordTime<br /> from mis_order o,mis_link l,mis_commodity c<br /> where o.oid=l.lid and c.cid=l.cid and o.oid=?";<br /> $stmt = $this->mysqli->prepare($sql);<br /> $stmt->bind_param("i",$oid);<br /> $stmt->execute();<br /> $stmt->store_result();<br /> $stmt->bind_result($oid,$lid,$cid,$comName,$comPrice,$ordTime);<br /> $rows = $stmt->affected_rows;<br /> if($rows > 0){<br /> $arrLink = array();<br /> while($stmt->fetch()){<br /> $arr = array(<br /> "oid" => $oid,<br /> "lid" => $lid,<br /> "cid" => $cid,<br /> "comName" => $comName,<br /> "comPrice" => $comPrice,<br /> "ordTime" => $ordTime<br /> );<br /> array_push($arrLink,$arr);<br /> }<br /> return $arrLink;<br /> }else{<br /> echo "查询订单明细失败!<br/>";<br /> }<br /> }<br />

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