首先，你可能想使用 爆 ，而不是爆炸，来构建你的 $ toField 变量; - ）

First, you probably want to use implode, and not explode, to construct your $toField variable ;-)

$ids = array(24, 25, 26, 29);
$toField = implode(',', $ids);
var_dump($toField);

这将使你

string '24,25,26,29' (length=11)

您在随后的形式注入这一点;这样的事情可能会做：

You then inject this in the form ; something like this would probably do :

<input type="hidden"  value="<?php echo $toField; ?>">

的（再检查一下你的表单的HTML源代码，以确保;-)）的

结果
然后，当它被提交从表单接收数据的PHP脚本，你会使用 爆炸 来提取数据作为一个数组，从字符串：

Then, on the PHP script that receives the data from the form when it's been submitted, you'd use explode to extract the data as an array, from the string :

foreach (explode(',', $_POST['receiverID']) as $receiverID) {
    var_dump($receiverID);
}

这将让你：

string '24' (length=2)
string '25' (length=2)
string '26' (length=2)
string '29' (length=2)

和，现在，你可以使用IDS放入系统...

And, now, you can use thoses ids...