如果在插入批处理 CodeIgniter 中输入不为空，如何发送值

Question

基本上我有这个将输入的值发送到数据库：

    $tag = $this->input->post('tags[]');

    $data = array();

    foreach ($tag as $term){
        $data[] = array(
            'post_id'  => $post_id,
            'term_id'  => $term,
            'user_id'  => $this->input->post('user_id'),
            'status'  => 'attached',
            'type'     =>  'tag',
        );

    }

    $this->db->insert_batch('ci_relationship', $data);

但我试图通过让管理员输入 X 用户作为值或他的会话 user_id 来创建 user_id "optional"，以防他决定离开它空..

我试过了，但还是不行：

    $tag = $this->input->post('tags[]');

    $data = array();

    foreach ($tag as $term){
        $data[] = array(
            'post_id'  => $post_id,
            'term_id'  => $term,
            //'user_id'  => $this->input->post('user_id'),
            'status'  => 'attached',
            'type'     =>  'tag',
        );

    }

    $user_id = $this->input->post('user_id');

    if(empty($user_id)){
        $data['user_id'] = $this->session->userdata('user_id');
    } else {
        $data['user_id'] = $user_id;
    }

    $this->db->insert_batch('ci_relationship', $data);

如您所见，我在 foreach 中注释了 user_id，然后将其添加到下一个代码块中，该代码块应该检查输入是否为空。

提前致谢！

Answer 1

那个 if 语句必须在那个 foreach 里面。

$tag = $this->input->post('tags[]');
$user_id = $this->input->post('user_id');

$data = array();

foreach ($tag as $key => $term){
    $data[$key] = array(
        'post_id'  => $post_id,
        'term_id'  => $term,
        'status'  => 'attached',
        'type'     =>  'tag',
    );

    if(empty($user_id)){
        $data[$key]['user_id'] = $this->session->userdata('user_id');
    } else {
        $data[$key]['user_id'] = $user_id;
    }
}

$this->db->insert_batch('ci_relationship', $data);

Answer 2

我认为不需要添加更多行，只需在旁边执行此操作即可

$data[] = array(
        'post_id'  => $post_id,
        'term_id'  => $term,
        'user_id'  => (!empty($this->input->post('user_id')) ? $this->input->post('user_id') : '',
        'status'  => 'attached',
        'type'     =>  'tag',
    );

Answer 3

$tag = $this->input->post('tags[]');

$data = array();

foreach ($tag as $key => $term){
if(empty($this->input->post('user_id')))
{
$data[$key] = array(
        'post_id'  => $post_id,
        'term_id'  => $term,
        'status'  => 'attached',
        'type'     =>  'tag',
    );

}
else
{
$data[$key] = array(
        'post_id'  => $post_id,
        'term_id'  => $term,
        'user_id'  => $this->input->post('user_id'),
        'status'  => 'attached',
        'type'     =>  'tag',
    );

}
}

$this->db->insert_batch('ci_relationship', $data);

希望对你有用。

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