Codeigniter多文件上传与缩略图实现代码

WBOY
Freigeben: 2016-07-25 08:53:08
Original
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  1. class Upload extends Controller {

  2. function go() {
  3. if(isset($_POST['go'])) {
  4. //初始化
  5. $config['upload_path'] = 'album/source';
  6. $config['allowed_types'] = 'gif|jpg|png|bmp|jpeg';
  7. $config['encrypt_name'] = TRUE;
  8. $config['remove_spaces'] = TRUE;
  9. $config['max_size'] = '0';
  10. $config['max_width'] = '0';
  11. $config['max_height'] = '0';
  12. $this->load->library('upload', $config);

  13. //170*170图片

  14. $configThumb = array();
  15. $configThumb['image_library'] = 'gd2';
  16. $configThumb['source_image'] = '';
  17. $configThumb['create_thumb'] = TRUE;
  18. $configThumb['maintain_ratio'] = TRUE; //保持图片比例
  19. $configThumb['new_image'] = 'album/thumb';
  20. $configThumb['width'] = 170;
  21. $configThumb['height'] = 170;
  22. //600*600图片
  23. $configLarge = array();
  24. $configLarge['image_library'] = 'gd2';
  25. $configLarge['source_image'] = '';
  26. $configLarge['create_thumb'] = TRUE;
  27. $configLarge['maintain_ratio'] = TRUE; //保持图片比例
  28. $configLarge['new_image'] = 'album/large';
  29. $configLarge['width'] = 600;
  30. $configLarge['height'] = 600;
  31. $this->load->library('image_lib');

  32. for($i = 1; $i $upload = $this->upload->do_upload('image'.$i);

  33. if($upload === FALSE) continue;
  34. $data = $this->upload->data();//返回上传文件的所有相关信息的数组
  35. $uid = $this->session->userdata('uid');
  36. $uploadedFiles[$i] = $data;
  37. if($data['is_image'] == 1) {

  38. //初始化170*170
  39. $configThumb['source_image'] = $data['full_path']; //文件路径带文件名
  40. $this->image_lib->initialize($configThumb);
  41. $this->image_lib->resize();
  42. //初始化600*600
  43. $configLarge['source_image'] = $data['full_path']; //文件路径带文件名
  44. $this->image_lib->initialize($configLarge);
  45. $this->image_lib->resize();
  46. }
  47. //插入图片信息到album表,插入的文件名为source目录文件名

  48. $picture = array(
  49. 'filename' => $data['file_name'],
  50. 'albumID' => $this->uri->segment(4,0),
  51. 'uid' => $this->session->userdata('uid'),
  52. 'dateline' => time(),
  53. 'describe' => '',
  54. 'click' => 0
  55. );
  56. $this->load->model('album_model');

  57. $this->album_model->AddPic($picture);
  58. $picture = array();
  59. }
  60. }
  61. /* 转出 */
  62. $albumID = $this->uri->segment(4);
  63. $backurl = site_url() . 'photo/editpic/album/' .$albumID;
  64. $this->session->set_flashdata('msg','图片上传成功.');
  65. redirect($backurl,'refresh');
  66. }
  67. }
复制代码

2,views:new_pic.view文件:







复制代码

type="submit" name="go" value="上传照片" class="button" />

注意事项: 1,要一次上传几个文件,修改表单和控制器中循环部分的参数就好。 2,album\\source 是上传后原图目录 large和thumb分别是两次执行$this->image_lib->resize();后存放缩略图的目录。 3,缩略图文件名,如需和album\\source目录一致,请添加参数 $config['thumb_marker'] = '';。 4,$picture 这部分数组是保存到数据库的东西,无需理会。



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