Question

我下拉的内容如下所示

<select class="selectpicker form-control" multiple name="category[]">
    <option value="1" id="MENTAL HEALTH">MENTAL HEALTH</option>
    <option value="2" id="SUICIDE SUPPORT">SUICIDE SUPPORT</option>
    <option value="3" id="HEALTH">HEALTH</option>
    <option value="4" id="SUPPORT">SUPPORT</option>
</select>

在我的控制器中，我有以下代码从下拉列表中获取数据

public function save()
{
    $ctgry= ($this->input->post('category'));
    $orgName= ($this->input->post('InputName'));
    $streetNo= ($this->input->post('StreetNo'));
    $streetName= ($this->input->post('StreetName'));
    $suburb= ($this->input->post('Suburb'));
    $state= ($this->input->post('state'));
    $postCode= ($this->input->post('PostCode'));
    $count = count($ctgry);

    $supprtGroup = array(
        'name' => $orgName,
        'street_no' => $streetNo,
        'street' => $streetName,
        'suburb' => $suburb,
        'state' => $state,
        'pc' => $postCode
    );

    $supportgroup_id = $this->Home_Model->addSupportGroup($supprtGroup);

    $j = 0;
    i = 0;
    $sc_id = 0

    echo 'aa';//just for error checking purpose

    if ($count > 1)
    {
        echo ' aa1';//just for error checking purpose
        while ($i > $count)
        {
            echo ' aa2';//just for error checking purpose

            $support_category = array(
                'supportgroup_id' => $supportgroup_id,
                'category_id' => $ctgry[$j]
            );
            $sc_id = $this->Home_Model->addSupportrCategory($support_category);
            $i++;
            echo $sc_id;//just for error checking purpose

        }
    }
    else
    {
        echo ' aa3';//just for error checking purpose
        $support_category = array(
            'supportgroup_id' => $supportgroup_id,
            'category_id' => $ctgry[$j]
        );
        $sc_id = $this->Home_Model->addSupportrCategory($support_category);
        echo $sc_id;//just for error checking purpose
    }
    echo'bb';//just for error checking purpose
}

以下是我的模型类

function addSupportGroup($supprtGroup=NULL)
{
    $this->db->insert('support_group', $supprtGroup);
    return $this->db->insert_id();
}

function addSupportrCategory($support_category=NULL)
{
    $this->db->insert('support_category', $support_category);
    return $this->db->insert_id();
}

当从下拉列表中选择多个值时，输出如下

aa aa1bb

如果是单一价值，有人可以给我一个答案，为什么会发生这种情况从下拉列表中选择它保存到DB精细我搜索每个类似的帖子但找不到答案。

Answer 1

我无法看到你问题中$count的定义，所以我不知道它的价值是什么，但是，如果你得到“aa1”作为输出你会说它更大比1。

使用while()，您说$i必须大于$count但$ i等于0，因此while循环不会启动。

如果您只想循环浏览类别，那么更容易：

$supportgroup_id = $this->Home_Model->addSupportGroup($supprtGroup);

foreach ($ctgry as $cat) {
    $insert = array(
       'supportgroup_id' => $supportgroup_id,
       'category_id' => $cat 
    );

    $sc_id = $this->Home_Model->addSupportrCategory($support_category);
}

这将有效，因为下拉列表将始终作为数组被选中。

你应还要考虑为此添加一些验证！

希望这有帮助！

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1 个答案: