PDO fetchAll 数组到一维 [英] PDO fetchAll array to one dimensional

问题描述

这可能是一个简单的问题，但我正在努力理解如何解决它.我有一个表单，允许用户选择自定义"或所有"员工来分配给工作.

this may be a simple question but am struggling to understand how to solve it. I have a form which allows the user to select either "custom" or "all" staff" to assign to a job.

如果选择自定义，用户通过单击每个复选框来选择员工，然后我将这些插入到工作表中.这会产生下面的数组(3、1、10 是员工 ID)

If custom is selected the user selects staff by clicking each checkbox, I then insert these into a jobs table. This produces the array below (3, 1, 10 are the staff IDs)

Array
(
    [0] => 3
    [1] => 1
    [2] => 10
)

如果选择了所有员工"，我首先查询一个选择语句，从员工表中获取所有员工 ID，然后将这些插入到工作表中，与上面相同.但是这会产生数组:

If "all staff" is selected, I first query a select statement to get all the staff ID's from the staff table, and then insert these into the job table the same as above. However this produces the array :

Array
(
    [0] => Array
        (
            [staffID] => 1
            [0] => 1
        )

    [1] => Array
        (
            [staffID] => 23
            [0] => 23
        )

    [2] => Array
        (
            [staffID] => 26
            [0] => 26
        )

    [3] => Array
        (
            [staffID] => 29
            [0] => 29
        )
)

如何将上面的数组转换为显示的第一个数组?

How can I convert the array above to the first array shown?

我正在使用下面的代码查询数据库以获取所有员工 ID，然后将其插入.

I'm using the code below to query the database to get all the staff ID's and then inserting them.

    $select = $db->prepare("SELECT staffID FROM staff");
    if($select->execute())
    {
       $staff = $select->fetchAll();
    }

    for($i = 0; $i<count($staff); $i++)
    {
    $staffStmt = $db->prepare("INSERT INTO staffJobs (jobID, userID) VALUES (:jobID, :staffID)");
    $staffStmt->bindParam(':jobID', $jobID, PDO::PARAM_INT);
    $staffStmt->bindParam(':staffID', $staff[$i], PDO::PARAM_INT);

    $staffStmt->execute();              

}

第一个数组插入正常，但最后一个数组为员工 ID 插入零.

The first array inserts fine, however the last array inserts zeros for the staffID.

有什么建议吗?

谢谢=)

推荐答案

看一看 手册中的示例 2.在您的第一个查询中，您可以使用:

Take a look at example 2 in the manual. In your first query you can use:

$staff = $select->fetchAll(PDO::FETCH_COLUMN, 0);

您的第二个数组将与第一个数组具有相同的形式.

And your second array will have the same form as the first array.

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