CI框架实现优化文件上传及多文件上传的方法

<?php  defined('BASEPATH') OR exit('No direct script access allowed');  //上传的参数配置  $config['upload_path'] = './public/uploads/';  $config['allowed_types'] = 'gif|png|jpg';  $config['max_size'] = 100;  $config['max_width'] = '1024';  $config['max_height'] = '768';

<?phpdefined('BASEPATH') OR exit('No direct script access allowed');/** * 控制器 */class Brand extends Admin_Controller{  public function __construct()  {    parent::__construct();    $this->load->model('brand_model');    $this->load->library('form_validation');    //激活分析器以调试程序    $this->output->enable_profiler(TRUE);    //配置中上传的相关参数会自动加载    $this->load->library('upload');  }}

public function insert(){  //设置验证规则  $this->form_validation->set_rules('brand_name','名称','required');  if($this->form_validation->run() == false){    //未通过验证    $data['message'] = validation_errors();    $data['wait'] = 3;    $data['url'] = site_url('admin/brand/add');    $this->load->view('message.html',$data);  }else{    //通过验证，处理图片上传    if ($this->upload->do_upload('logo')) { //logo为前端file控件名      //上传成功，获取文件名      $fileInfo = $this->upload->data();      $data['logo'] = $fileInfo['file_name'];      //获取表单提交数据      $data['brand_name'] = $this->input->post('brand_name');      $data['url'] = $this->input->post('url');      $data['brand_desc'] = $this->input->post('brand_desc');      $data['sort_order'] = $this->input->post('sort_order');      $data['is_show'] = $this->input->post('is_show');      //调用模型完成添加动作      if($this->brand_model->add_brand($data)){        $data['message'] = "添加成功";        $data['wait'] = 3;        $data['url'] = site_url('admin/brand/index');        $this->load->view('message.html',$data);      }else{        $data['message'] = "添加失败";        $data['wait'] = 3;        $data['url'] = site_url('admin/brand/add');        $this->load->view('message.html',$data);      }    }else{      //上传失败      $data['message'] = $this->upload->display_errors();      $data['wait'] = 3;      $data['url'] = site_url('admin/brand/add');      $this->load->view('message.html',$data);    }  }}

/** * Codeigniter框架实现多文件上传 * @author Zhihua_W * 方法一：对上传的文件进行循环处理 */public function multiple_uploads1(){  //载入所需文件上传类库  $this->load->library('upload');  //配置上传参数  $upload_config = array(    'upload_path' => './public/uploads/',    'allowed_types' => 'jpg|png|gif',    'max_size' => '500',    'max_width' => '1024',    'max_height' => '768',  );  $this->upload->initialize($upload_config);  //循环处理上传文件  foreach ($_FILES as $key => $value) {    if (!empty($key['name'])) {      if ($this->upload->do_upload($key)) {        //上传成功        print_r($this->upload->data());      } else {        //上传失败        echo $this->upload->display_errors();      }    }  }}

/** * Codeigniter框架实现多文件上传 * @author Zhihua_W * 方法二：直接一下将多个文件全部上传然后在对上传过的数据进行处理 */public function multiple_uploads2(){  $config['upload_path'] = './public/uploads/';  //这里的public是相对于index.php的,也就是入口文件,这个千万不能弄错!  //否则就会报错："The upload path does not appear to be valid.";  $config['allowed_types'] = 'gif|jpg|png';  //我试着去上传其它类型的文件,这里一定要注意顺序!  //否则报错："A problem was encountered while attempting to move the uploaded file to the final destination."  //这个错误一般是上传文件的文件名不能是中文名,这个很郁闷!还未解决,大家可以用其它方法,重新改一下文件名就可以解决了!  //$config['allowed_types'] = 'zip|gz|png|gif|jpg';(正确)  //$config['allowed_types'] = 'png|gif|jpg|zip|gz';(错误)  $config['max_size'] = '1024';  $config['max_width'] = '1024';  $config['max_height'] = '768';  $config['file_name'] = time(); //文件名不使用原始名  $this->load->library('upload', $config);  if (!$this->upload->do_upload()) {    echo $this->upload->display_errors();  } else {    $data['upload_data'] = $this->upload->data(); //上传文件的一些信息    $img = $data['upload_data']['file_name']; //取得文件名    echo $img . "<br>";    foreach ($data['upload_data'] as $item => $value) {      echo $item . ":" . $value . "<br>";    }  }}