上传文件Codeigniter，无法检测到变量

Question

我正在尝试在 Codeigniter 上制作上传图片功能。但是，当我尝试将图像插入数据库时​​。无法检测到变量。

这是我的控制器：

public function registrasi() {
	//VALIDATION
	$this->form_validation->set_rules('username', 'Username', 'required');
	$this->form_validation->set_rules('email', 'Email', 'required|trim|valid_email|is_unique[tb_m_user.email]');
	$this->form_validation->set_rules('password', 'Password', 'required|trim|min_length[3]|matches[konfirmasi_password]');
	$this->form_validation->set_rules('konfirmasi_password', 'Retype Password', 'required|trim|matches[password]');

		if($this->form_validation->run() == false) {
			$this->session->set_flashdata('fail' , 'Registration Failed! Please Try Again');
			$this->load->view('auth/registrasi');
		}else{
			//INSERT TO DATABASE
			$username 	= $this->input->post('username');
			$email 		= $this->input->post('email');
			$password 	= password_hash($this->input->post('password'), PASSWORD_DEFAULT);
			$pict 		= $_FILES['pict'];
					
				//LIBRARY UPLOAD CONFIG
				$config['upload_path']		= '/assets/dist/foto_validasi';
				$config['allowed_types']	= 'jpg|png';
				$config['file_name']		= date('ymd');
				$this->load->library('upload', $config);
						
				if(!$this->upload->do_upload('pict')){
					echo "Upload Failed"; 
				}else{
					$pict = $this->upload->data('file_name');
				}

			$data = [
				'user_name'   => $username,
				'email'       => $email,
				'password'  => $password,
				'role'        => 'pengguna',
				'img'	      => $pict,
				'status_aktivasi'	=> 'tidak aktif',
				'created_by'		=> 'SYSTEM',
			];

				$this->m_auth->registrasi($data, 'tb_m_user');
				$this->session->set_flashdata('success' , 'Registration Successful! Please Login');
				Redirect('Auth/login');
			}
		}

		public function login() {
			$this->form_validation->set_rules('email', 'Email', 'required');
			$this->form_validation->set_rules('password', 'Password', 'required');

			if ($this->form_validation->run() == false) {
				$this->load->view('auth/login');
			}else{
				$this->postlogin();
			}
		}

这是我的表单视图：

<?= form_open_multipart('Auth/registrasi'); ?>
<div class="border-top mt-3">
            <div class="ml-2">
            <label class="mt-2">Upload Kartu Identitas</label>
          </div>
          <div class="input-group mb-3">
           <input type="file" class="form-control" placeholder="Upload Foto Identitas" name="pict">
            <div class="input-group-append">
              <div class="input-group-text">
                <span class="fas fa-file-image"></span>
              </div>
            </div>
          </div>
          <small class="text-danger"><?= form_error('foto') ?></small>
        </div>
 <?= form_close(); ?>

这是错误：error

---

---

我什至尝试从以下位置更改变量：

$pict = $this->upload->data('file_name');

'img' => $pict,

到：

$pict2 = $this->upload->data('file_name');

'img' => $pict2,

---

但它得到另一个错误：error2

Answer 1

如果你想要上传功能，你可以像这样修改代码：

public function registrasi() {
    //VALIDATION
    $this->form_validation->set_rules('username', 'Username', 'required');
    $this->form_validation->set_rules('email', 'Email', 'required|trim|valid_email|is_unique[tb_m_user.email]');
    $this->form_validation->set_rules('password', 'Password', 'required|trim|min_length[3]|matches[konfirmasi_password]');
    $this->form_validation->set_rules('konfirmasi_password', 'Retype Password', 'required|trim|matches[password]');

    if($this->form_validation->run() == false) {
        $this->session->set_flashdata('fail' , 'Registration Failed! Please Try Again');
        $this->load->view('auth/registrasi');
    }else{
        //INSERT TO DATABASE
        $username   = $this->input->post('username');
        $email      = $this->input->post('email');
        $password   = password_hash($this->input->post('password'), PASSWORD_DEFAULT);
        $pict       = $_FILES['pict'];

        //LIBRARY UPLOAD CONFIG
        $config['upload_path']      = '/assets/dist/foto_validasi';
        $config['allowed_types']    = 'jpg|png';
        $config['file_name']        = date('ymd');
        $this->load->library('upload', $config);

        if(!$this->upload->do_upload('foto')){
            echo "Upload Failed"; 
            $this->session->set_flashdata('fail', $this->upload->display_errors() );
            redirect( 'auth/registrasi' );
        }else{
            $pict = $this->upload->data('file_name');
            $data = [
                'user_name'   => $username,
                'email'       => $email,
                'password'  => $password,
                'role'        => 'pengguna',
                'img'         => $pict,
                'status_aktivasi'   => 'tidak aktif',
                'created_by'        => 'SYSTEM',
            ];

            $this->m_auth->registrasi($data, 'tb_m_user');
            $this->session->set_flashdata('success' , 'Registration Successful! Please Login');
            Redirect('Auth/login');
        }
    }
}

$this->upload->display_errors()代码会在上传的文件不符合要求时显示错误信息，所以如果文件没有上传，注册数据将不会被保存。

Answer 2

将帖子字段名称更改为 if(!$this->upload->do_upload('pict')){

if(!$this->upload->do_upload('pict')){ // You should change this 

Answer 3

size 属性应该在输入字段中

<input type="file" size="1" class="form-control" placeholder="Upload Foto Identitas" name="pict">