用Codeigniter解决多文件上传并创建多个缩略图的代码示例
分类：PHP_Python| 发布：佚名| 查看：383 | 发表时间：2014/8/10
该程序可以实现:
1.同时上传5张图片
2.同时生成两种尺寸的缩略图
3.保存到mysql
controllers：upload.php文件：
代码如下:
02 | class Upload extends Controller { |
04 | if(isset($_POST['go'])) { |
06 | $config['upload_path'] = 'album/source'; |
07 | $config['allowed_types'] = 'gif|jpg|png|bmp|jpeg'; |
08 | $config['encrypt_name'] = TRUE; |
09 | $config['remove_spaces'] = TRUE; |
10 | $config['max_size'] = '0'; |
11 | $config['max_width'] = '0'; |
12 | $config['max_height'] = '0'; |
14 | $this->load->library('upload', $config); |
17 | $configThumb = array(); |
18 | $configThumb['image_library'] = 'gd2'; |
19 | $configThumb['source_image'] = ''; |
20 | $configThumb['create_thumb'] = TRUE; |
21 | $configThumb['maintain_ratio'] = TRUE; |
22 | $configThumb['new_image'] = 'album/thumb'; |
23 | $configThumb['width'] = 170; |
24 | $configThumb['height'] = 170; |
26 | $configLarge = array(); |
27 | $configLarge['image_library'] = 'gd2'; |
28 | $configLarge['source_image'] = ''; |
29 | $configLarge['create_thumb'] = TRUE; |
30 | $configLarge['maintain_ratio'] = TRUE; |
31 | $configLarge['new_image'] = 'album/large'; |
32 | $configLarge['width'] = 600; |
33 | $configLarge['height'] = 600; |
35 | $this->load->library('image_lib'); |
37 | for($i = 1; $i < 6; $i++) { |
38 | $upload = $this->upload->do_upload('image'.$i); |
39 | if($upload === FALSE) continue; |
40 | $data = $this->upload->data(); |
41 | $uid = $this->session->userdata('uid'); |
42 | $uploadedFiles[$i] = $data; |
44 | if($data['is_image'] == 1) { |
46 | $configThumb['source_image'] = $data['full_path']; |
47 | $this->image_lib->initialize($configThumb); |
48 | $this->image_lib->resize(); |
50 | $configLarge['source_image'] = $data['full_path']; |
51 | $this->image_lib->initialize($configLarge); |
52 | $this->image_lib->resize(); |
57 | 'filename' => $data['file_name'], |
58 | 'albumID' => $this->uri->segment(4,0), |
59 | 'uid' => $this->session->userdata('uid'), |
65 | $this->load->model('album_model'); |
66 | $this->album_model->AddPic($picture); |
71 | $albumID = $this->uri->segment(4); |
72 | $backurl = site_url() . 'photo/editpic/album/' .$albumID; |
73 | $this->session->set_flashdata('msg','图片上传成功.'); |
74 | redirect($backurl,'refresh'); |
views:new_pic.view文件：
代码如下:
01 | <form method="post" action="<?php echo site_url() ?>photo/upload/go/<?php echo $albumID ?>" enctype="multipart/form-data"> |
02 | <input type="file" name="image1" class="files"/> |
04 | <input type="file" name="image2" class="files"/> |
06 | <input type="file" name="image3" class="files"/> |
08 | <input type="file" name="image4" class="files"/> |
10 | <input type="file" name="image5" class="files"/> |
14 | <p><input type="submit" name="go" value="上传照片" class="button" /></p> |
此外需要注意：
1.要一次上传几个文件，修改表单和控制器中循环部分的参数就好。
2.album\\source 是上传后原图目录 large和thumb分别是两次执行$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，可以不用管了。
