这是一款简单PHP图片上传类带图片显示代码,应该可以说是上传文件最简单的上传类了,可以设置要显示图片高度与宽度,文件大小等.

uploadimg.class.php文件,代码如下:

1. class upload
2. {
3. var $upload_name;
4. var $upload_tmp_address;
5. var $upload_server_name;
6. var $upload_filetype ;
7. var $file_type;
8. var $file_server_address;
9. var $image_w=900; //要显示图片的宽
10. var $image_h=350; //要显示图片的高
11. var $upload_file_size;
12. var $upload_must_size= 50000; //允许上传文件的大小，自己设置
13. function upload_file()
14. {
15. $this->upload_name = $_files["file"]["name"]; //取得上传文件名
16. $this->upload_filetype = $_files["file"]["type"];
17. $this->upload_server_name = date("y_m_dh_i_s").$this->upload_name;
18. $this->upload_tmp_address = $_files["file"]["tmp_name"]; //取得临时地址
19. $this->file_type = array("image/gif","image/pjpeg"); //允许上传文件的类型
20. $this->upload_file_size = $_files["file"]["size"]; //上传文件的大小
21. if(in_array($this->upload_filetype,$this->file_type))
22. { if($this->upload_file_size < $this->upload_must_size)
23. {
24. echo("上传成功，谢谢支持");
25. $this->file_server_address = "d:www.111cn.netupload/".$this->upload_server_name;
26. move_uploaded_file($this->upload_tmp_address,$this->file_server_address);//从temp目录移出
27. echo("<img src=$this->file_server_address width=$this->image_w height=$this->image_h/>"); //显示图片
28. }
29. else
30. {
31. echo("文件容量太大");
32. }
33. }
34. else
35. {
36. echo("不支持此文件类型，请重新选择");
37. //开源代码phpfensi.com
38. }
39. }
40. }

html上传代码,代码如下:

1. <form name="upload" enctype="multipart/form-data" method="post" action="upload.php">
2. <input type="hidden" name="max_file_size " />
3. <input type="file" name="file" />
4. <input type="submit" name="submit" value="提交" />
5. </form>

调用方法,upload.php,代码如下:

1. inlcude('uploadimg.class.php');
2. $dd = new upload;
3. $dd->upload_file();