Codeigniter enctype="multipart/form-data" 无法正确保存照片答案

【问题标题】：Codeigniter enctype="multipart/form-data" not save photo properlyCodeigniter enctype="multipart/form-data" 无法正确保存照片
【发布时间】：2020-05-13 06:18:42
【问题描述】：

Codeigniter 当我在注册表单中使用 enctype="multipart/form-data" 时，照片不会保存在数据库中，但照片会上传文件夹。然后当我删除 enctype="multipart/form-data" 照片保存在数据库中，但照片没有上传文件夹。如果这是代码的问题，请执行完整的代码。因为我不是一个优秀的开发者。

查看

<form method="post" action="family_join" enctype="multipart/form-data" id="wizard">

    <h4 class="text-center mb-4 mt-4">Upload Photo</h4>
    <div class="form-group mt-3 mb-4">
        <div class="dropzone-wrapper">
            <div class="dropzone-desc">
                <i class="glyphicon glyphicon-download-alt"></i>
                <p>Choose an image file or drag it here.</p>
            </div>
            <input type="file" name="photo" class="dropzone">
        </div>
    </div>

    <h4 class="text-center mb-4">Please enter the zipcode</h4>
    <div class="default-form contact-form">
        <div class="form-group">
            <input type="text" name="zipcode" placeholder="Enter Zip Code" required>
        </div>
    </div>

</form>

控制器

< ? php
defined('BASEPATH') OR exit('No direct script access allowed');
Class Family_Join extends CI_Controller {
    public
    function __construct() {
        parent::__construct();
        $this->load-> helper(array('form', 'url'));
    }
    public
    function index() {
        $this->form_validation-> set_rules('zipcode', 'Zipcode', 'required|min_length[4]');
        if ($this->form_validation->run()) {
            $zipcode=$this->input->post('zipcode');
            $photo=$this->input->post('photo');
            $status = 1;
            $this->load->model('Family_Join_Model');

            $config['upload_path'] = './uploads/';
            $config['allowed_types'] = 'gif|jpg|png';
            $this->load->library('upload', $config);
            $this->upload->do_upload('photo');

            $this-> Family_Join_Model->insert($zipcode, $photo, $status);
        } else {
            $this->load->view('user/family_join', array('error' => ' '));
        }
    }
}

型号

< ? php
defined('BASEPATH') OR exit('No direct script access allowed');
Class Family_Join_Model extends CI_Model {

    public
    function insert($zipcode, $photo, $status) {
        $data = array(
            'zipcode' => $zipcode,
            'photo' => $photo,
            'isActive' => $status
        );
        $sql_query=$this->db->insert('tblfm', $data);
        if ($sql_query) {
            $this->session->set_flashdata('success', 'Registration successfull');
            redirect('user/family_join');
        } else {
            $this->session->set_flashdata('error', 'Somthing went worng. Error!!');
            redirect('user/family_join');
        }

    }

}

【问题讨论】：

标签： php database codeigniter

【解决方案1】：

这是因为当您将 enctype 设置为 multipart/form-data 时，您的输入以二进制文件的形式发送到服务器，而二进制文件无法插入到数据库中。

要将文件名插入数据库，请按照以下步骤操作。

保留 enctype=multipart/form-data（这样您的文件就会上传到服务器）
替换这一行：

$this->Family_Join_Model->insert($zipcode, $photo, $status);

这些：

$upload_data = $this->upload->data(); 
$this->Family_Join_Model->insert($zipcode, $upload_data['file_name'], $status);

【讨论】：

【解决方案2】：

先上传文件，从上传的文件数据中获取文件名。

        $config['upload_path'] = './uploads/';
        $config['allowed_types'] = 'gif|jpg|png';
        $this->load->library('upload', $config);
        if ($this->upload->do_upload('photo')) {
            $file_details = $this->upload->data();
            $photo = $file_details['file_name'];
        } else {
            $file_upload_msg = $this->upload->display_errors('<p>', '</p>');
        }

【讨论】：

【解决方案3】：

$this->upload->do_upload('photo');
$upload_data = $this->upload->data();
$this->Family_Join_Model->insert($zipcode, $upload_data, $status);




**Model**

public
function insert($zipcode, $upload_data, $status) {
    $data = array(
        'zipcode' => $zipcode,
        'photo' => $upload_data['file_name'],
        'isActive' => $status
    );
    $sql_query=$this->db->insert('tblfm', $data);
    if ($sql_query) {
        $this->session->set_flashdata('success', 'Registration successfull');
        redirect('user/family_join');
    } else {
        $this->session->set_flashdata('error', 'Somthing went worng. Error!!');
        redirect('user/family_join');
    }

}

【讨论】：