在 Codeigniter 中上传 CSV 文件时出错

Posted 2023-02-24

【中文标题】在 Codeigniter 中上传 CSV 文件时出错

【英文标题】：Error on uploading CSV File in Codeigniter

【发布时间】：2015-12-10 05:42:10

【问题描述】：

您好，我正在尝试使用 CI 库将 CSV 导入 mysql 数据库。但我在 Controller 中收到此错误，即现在允许文件类型

控制器：

    <?php

     class Csv extends CI_Controller 

    function __construct() 
        parent::__construct();
        $this->load->model('csv_model');
        $this->load->library('csvimport');
    

    function index() 
        $data['addressbook'] = $this->csv_model->get_addressbook();
        $this->load->view('csvindex', $data);
    

    function importcsv() 
        $data['addressbook'] = $this->csv_model->get_addressbook();
        $data['error'] = '';    //initialize image upload error array to empty

        $config['upload_path'] = './uploads/';
        $config['allowed_types'] = 'csv';
        $config['max_size'] = '1000';

        $this->load->library('upload', $config);


        // If upload failed, display error
        if (!$this->upload->do_upload()) 
            $data['error'] = $this->upload->display_errors();

            $this->load->view('csvindex', $data);
         else 
            $file_data = $this->upload->data();
            $file_path =  './uploads/'.$file_data['file_name'];

            if ($this->csvimport->get_array($file_path)) 
                $csv_array = $this->csvimport->get_array($file_path);
                foreach ($csv_array as $row) 
                    $insert_data = array(
                        'firstname'=>$row['firstname'],
                        'lastname'=>$row['lastname'],
                        'phone'=>$row['phone'],
                        'email'=>$row['email'],
                    );
                    $this->csv_model->insert_csv($insert_data);
                
                $this->session->set_flashdata('success', 'Csv Data Imported Succesfully');
                redirect(base_url().'csv');
                //echo "<pre>"; print_r($insert_data);
             else 
                $data['error'] = "Error occured";
                $this->load->view('csvindex', $data);
            

         

   
   /*END OF FILE*/

模型：

    <?php

    class Csv_model extends CI_Model 

    function __construct() 
        parent::__construct();

    

    function get_addressbook()      
        $query = $this->db->get('addressbook');
        if ($query->num_rows() > 0) 
            return $query->result_array();
         else 
            return FALSE;
        
    

    function insert_csv($data) 
        $this->db->insert('addressbook', $data);
    
  
     /*END OF FILE*/

我正在尝试使用 PHP Codeigniter 导入 CSV。现在我收到一个错误，

您尝试上传的文件类型不允许。

如您所见，我保留了允许的文件类型 = csv，那么这个问题也即将到来。所以请帮忙。谢谢

【问题讨论】：

config/mimes.php 你应该在 csv 键中添加 text/plain

@Abdulla 什么类型的密钥？

使用 csc 搜索。可能是文件顶部

不明白你的意思@Abdulla

转到文件并在 config/mimes.php 文件中搜索 csv 并在行尾添加 text/plain

【参考方案1】：

您可以使用 CALLBACK 函数来代替更改 mime 类型 这也将增加更多的可移植性...

 function importcsv() 

        $data['addressbook'] = $this->csv_model->get_addressbook();
        $data['error'] = '';    //initialize image upload error array to empty

    $this->form_validation->set_rules('uploaded_file','Uploaded file', 'trim|callback_chk_attachment');

        if($this->form_validation->run())    
        $config['upload_path'] = './uploads/';
        $config['allowed_types'] = '*';
        $config['max_size'] = '1000';

        $this->load->library('upload', $config);

        // If upload failed, display error
        if (!$this->upload->do_upload()) 
            $data['error'] = $this->upload->display_errors();

            $this->load->view('csvindex', $data);
         else 
            $file_data = $this->upload->data();
            $file_path =  './uploads/'.$file_data['file_name'];

            if ($this->csvimport->get_array($file_path)) 
                $csv_array = $this->csvimport->get_array($file_path);
                foreach ($csv_array as $row) 
                    $insert_data = array(
                        'firstname'=>$row['firstname'],
                        'lastname'=>$row['lastname'],
                        'phone'=>$row['phone'],
                        'email'=>$row['email'],
                    );
                    $this->csv_model->insert_csv($insert_data);
                
                $this->session->set_flashdata('success', 'Csv Data Imported Succesfully');
                redirect(base_url().'csv');
                //echo "<pre>"; print_r($insert_data);
             else 
                $data['error'] = "Error occured";
                $this->load->view('csvindex', $data);
            

        




Call Back function for File Upload validation:

        public function chk_attachment() // callback validation for check the attachment extension
        
            $file_type = array('.csv');
            if(!empty($_FILES['uploaded_file']['name']))
            
                $ext = strtolower(strrchr($_FILES['uploaded_file']['name'],"."));
                if(in_array($ext,$ext_array))
                
                    return true;
                
                else
                
                    $this->form_validation->set_message('chk_attachment','Attachment allowed only csv');
                    return false;
                
            
            
               $this->form_validation->set_message('chk_attachment','image field is required');
                    return false;
            
        

【讨论】：

仍然收到错误您尝试上传的文件类型不被允许。

我也有这个问题。但是这个回电修复了我！无论如何，我会找到其他解决方案。

我只是使用了你的代码@blacmoon，但没有显示任何差异:(