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我玩游戏有点晚了，正在尝试从 mysql_* 过渡到 PDO，同时尝试应对当前的挑战。我有一个界面，我在其中捕获数组中的框编号值，并且该数组按行项存储在另一个数组中（为了清楚起见，这些是嵌套数组）。

我的主要目的是获取特定行项目的框号并运行 mysql 选择查询以返回给定框中的单元数。如果框中的数量不是用户认为的数量，我希望它抛出错误。

目前我的挑战是我得到一个空的结果集。我相信这是由于我的框号数组没有正确传递给 PDO 选择语句。任何想法或指导将不胜感激。

这是我到目前为止所拥有的：

$Boxes = $_POST['Boxes']; //this includes box numbers within an array for each line item of a form

$e = 0;

while($e<$num1){
$units = 0;
$r = 0;
$SO_Line_Item=mysql_result($result1,$e,"SO_Line_Item");

    foreach ($Boxes[$e] as $a => $b)  // the purpose of this loop is to take the values from Boxes and store it in $zzz which I hope to use in my Select statement below.
    {
    $zzz[] = $Boxes[$e][$r];
    $r++; 
    }
   //end inner foreach

$BNs= implode(',', $zzz);

$db = new PDO('mysql:host=XXXXXX ;dbname=XXXXXX', $dbuser,$dbpass);
$stmt = $db->prepare("SELECT Box_Num,Timestamp,SN,Assy_Status FROM Current_Box WHERE Box_Num IN(' . $BNs . ')");
$stmt->execute($zzz);   

$results = $stmt->fetchAll(PDO::FETCH_ASSOC);
var_dump($results); // this shows up as an empty array

}  
$e++;
}
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1 回答 1

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这样就搞定了。感谢 Marc B 的想法：

$e = 0;

while($e<$num1){
$units = 0;
$r = 0;
$SO_Line_Item=mysql_result($result1,$e,"SO_Line_Item");

    foreach ($Boxes[$e] as $a => $b)  
    {

        $zzz[] = $Boxes[$e][$r];

$ce = count($Boxes[$e]);        

    $r++; 
    }
//end inner foreach

$products = implode(',', array_fill(0,$ce, '?'));

$db = new PDO('mysql:host=192.168.1.197 ;dbname=Tracking', $dbuser,$dbpass);
$stmt = $db->prepare("SELECT Box_Num,Timestamp,E3_SN,Assy_Status FROM Current_Box WHERE Box_Num IN( $products )");
$stmt->execute($zzz);
$results = $stmt->fetchAll(PDO::FETCH_ASSOC);
}
unset($zzz);
$e++;
}
于 2012-08-28T00:24:02.440 回答