使用 codeigniter 控制器上传图片答案

【问题标题】：Upload image using codeigniter controller使用 codeigniter 控制器上传图片
【发布时间】：2016-02-13 11:27:05
【问题描述】：

public function add_software()
{   
    $this->load->library('form_validation');

    $this->form_validation->set_error_delimiters('<div class="error-form">',   
'</div>');
    $this->form_validation->set_rules('name', 'Name', 
'required|min_length[4]|max_length[25]');
    $this->form_validation->set_rules('desc', 'Description', 'required');
    $this->form_validation->set_rules('licence', 'Licence.', 'required');
    $this->form_validation->set_rules('platform', 'Platform', 'required');
    $this->form_validation->set_rules('developers', 'Developer',     
'required');
    $this->form_validation->set_rules('link', 'Developer Website', 
'required');
    $this->form_validation->set_rules('cat', 'Category', 'required');
    $this->form_validation->set_rules('logo', 'Software Logo', 'required');

    if ($this->form_validation->run() == FALSE) {
    $this->load->view('admin/includes/header');
    $this->load->view('admin/add_software');
    $this->load->view('admin/includes/footer');
    } else {
    //Setting values for tabel columns
    $data['name']        = $this->input->post('name');
    $data['description'] = $this->input->post('desc');
    $data['licence']     = $this->input->post('licence');
    $data['platform']    = $this->input->post('platform');
    $data['developers']  = $this->input->post('developers');
    $data['link']        = $this->input->post('link');
    $data['category']    = $this->input->post('cat');
    $data['logo']    = $this->input->post('logo');

    /////////////////////////////////
    //set preferences

    $config = array(
    'upload_path' => '' .base_url(). '/assets/img/logo/',
    'allowed_types' => "gif|jpg|png|jpeg|pdf",
    'overwrite' => TRUE,
    'max_size' => "4096000", 
    'max_height' => "1024",
    'max_width' => "1024"
    );
            //load upload class library

    $this->load->library('upload', $config);
           $this->upload->data();
           $this->upload->do_upload();
    /////////////////////////////////
    //Transfering data to Model
    $this->insert_model->form_insert($data);
    $data['message'] = 'Data Inserted Successfully';
    //Loading View
    redirect('admin/view_softwares', 'refresh');
    }
}

这是我的 codeigniter 控制器功能。使用此功能，我可以将数据添加到数据库中。但是，我无法上传图片。甚至在php.ini 中也启用了upload_files。我整天都在尝试解决这个问题，但都是徒劳的。我没有在我的 html 表单中使用 enctype，因为当我使用 enctype 时，我收到以下错误：

undefined Index filename

【问题讨论】：

试试 'upload_path' => './assets/img/logo/',
您必须使用 enctype="multipart/form-data" 上传文件并使用 $image_info = $this->upload->do_upload("name_of_input_type_file");

标签： php sql codeigniter

【解决方案1】：

朋友我会给出我为上传图片所做的代码。这肯定有效。你可以参考这个。有任何疑问，请询问，我会帮助你

public function uploadImage() {
        $this->load->helper(array('form', 'url'));  
        $config['upload_path'] = 'assets/images/b2bcategory';
        $config['allowed_types'] = 'gif|jpg|png';
        $config['max_size'] = '1000';
        $config['max_width'] = '2024';
        $config['max_height'] = '1768';
        $config['width'] = 75;
        $config['height'] = 50;
        if (isset($_FILES['catimage']['name'])) {
            $filename = "-" . $_FILES['catimage']['name'];
            $config['file_name'] = substr(md5(time()), 0, 28) . $filename;
        }
        $config['overwrite'] = TRUE;
        $config['remove_spaces'] = TRUE;
        $field_name = "catimage";
        $this->load->library('upload', $config);
        if ($this->input->post('selsub')) {
            if (!$this->upload->do_upload('catimage')) {
                //no file uploaded or failed upload
                $error = array('error' => $this->upload->display_errors());
            } else {
                $dat = array('upload_data' => $this->upload->data());
                $this->resize($dat['upload_data']['full_path'],           $dat['upload_data']['file_name']);
            }
            $ip = $_SERVER['REMOTE_ADDR'];
            if (empty($dat['upload_data']['file_name'])) {
                $catimage = '';
            } else {
                $catimage = $dat['upload_data']['file_name'];
            }
            $data = array(            
                'ctg_image' => $catimage,
                'ctg_dated' => time()
            );
            $this->b2bcategory_model->form_insert($data);

        }
    }

【讨论】：

欢迎亲爱的。总是乐于提供帮助:)

【解决方案2】：

你的路径是错误的。

'upload_path' => '' .base_url(). '/assets/img/logo/',

注意：确保您的上传路径“资产文件夹”位于主目录之外应用程序文件夹。您可能还需要设置文件夹权限。

试试

'upload_path' => FCPATH . 'assets/img/logo/'

或者只是

'upload_path' => './assets/img/logo/'

上传成功后获取文件信息preferences

$image_info = $this->upload->data();

echo $image_info['file_name'];

或通过模型

$this->insert_model->form_insert($data,  $image_info = array());

【讨论】：