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HomeBackend DevelopmentPHP Tutorial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!该如何处理

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:

PHP code
<!--Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--><?php /*    利用mysqli扩展来绑定结果*/    //新建服务器连接    $mysqli=new mysqli('localhost','root','root','searcdb');    //创建查询    $query="SELECT adminName,adminPwd FROM admininfo";    //创建语句对象    $stmt=$mysqli->stmt_init();    //为执行准备语句    $stmt->prepare($query);    //执行语句    $stmt->execute();    //绑定结果参数    $stmt->bind_result($name,$pwd);    //循环处理结果并输出数据    while($stmt->fetch()){        printf("%s, %s, %s <br>",$name,$pwd);    }    //恢复语句资源    $stmt->close();    //关闭连接    $mysqli->close();?>
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:
PHP code
function selectLink($oid){        $sql = "select o.oid,l.lid,c.cid,comName,comPrice,ordTime                from mis_order o,mis_link l,mis_commodity c                where o.oid=l.lid and c.cid=l.cid and o.oid=?";        $stmt = $this->mysqli->prepare($sql);        $stmt->bind_param("i",$oid);        $stmt->execute();        $stmt->store_result();        $stmt->bind_result($oid,$lid,$cid,$comName,$comPrice,$ordTime);        $rows = $stmt->affected_rows;        if($rows > 0){            $arrLink = array();            while($stmt->fetch()){                 $arr = array(                    "oid" => $oid,                    "lid" => $lid,                    "cid" => $cid,                    "comName" => $comName,                    "comPrice" => $comPrice,                    "ordTime" => $ordTime                );                array_push($arrLink,$arr);            }            return $arrLink;        }else{            echo "查询订单明细失败!<br>";        }    }<div class="clear">
                 
              
              
        
            </div>
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