从codeigniter中的列表框中检索值

Question

我创建了一个列表框，如下所示

echo "<select name="listbox1"  multiple>";
echo "<option value="0">-Select-</option>";
foreach ($Details as $Id => $Name) {
    echo "<option value="$Id">$Name</option>";
 }
 echo "</select>";

现在我想检索这些值 我试试这些

$retrievelist['listbox1']= $this->input->post('listbox1'); 
var_dump($retrievelist);

仅显示所选项目中的第一项。提前谢谢

Answer 1

将此echo "<select name="listbox1" multiple>";更改为echo "<select name="listbox1[]" multiple>";