Php powerful Image Upload class

1. <? Php
2. Class upphoto {
3. Public $ previewsize = 0.125; // preview the image proportion
4. Public $ preview = 0; // whether to generate a preview. The value is 1 and the value is 0.
5. Public $ datetime; // Random Number
6. Public $ ph_name; // upload the image file name
7. Public $ ph_tmp_name; // temporary Image File Name
8. Public $ ph_path = "../userimg/"; // Upload File Storage path
9. Public $ ph_type; // image type
10. Public $ ph_size; // image size
11. Public $ imgsize; // the size of the uploaded image, used to determine the display ratio.
12. Public $ al_ph_type = array (image/jpg, image/jpeg, image/png, image/pjpeg, image/gif, image/bmp, image/x-png ); // allows the upload of image types
13. Public $ al_ph_size = 1000000; // the file size that can be uploaded
14. Function _ construct (){
15. $ This-> set_datatime ();
16. }
17. Function set_datatime (){
18. $ This-> datetime = date ("YmdHis ");
19. }
20. // Obtain the file type
21. Function get_ph_type ($ phtype ){
22. $ This-> ph_type = $ phtype;
23. }
24. // Get the file size
25. Function get_ph_size ($ phsize ){
26. $ This-> ph_size = $ phsize. "<br> ";
27. }
28. // Get the upload temporary file name
29. Function get_ph_tmpname ($ tmp_name ){
30. $ This-> ph_tmp_name = $ tmp_name;
31. $ This-> imgsize = getimagesize ($ tmp_name );
32. }
33. // Obtain the original file name
34. Function get_ph_name ($ phname ){
35. $ This-> ph_name = $ this-> ph_path. $ this-> datetime. strrchr ($ phname, "."); // the last position where the strrchr obtains the object's vertex.
36. // $ This-> ph_name = $ this-> datetime. strrchr ($ phname, "."); // obtain the last position where the point of the file appears.
37. Return $ this-> ph_name;
38. }
39. // Determine the directory for storing uploaded files
40. Function check_path (){
41. If (! File_exists ($ this-> ph_path )){
42. Mkdir ($ this-> ph_path );
43. }
44. }
45. // Determine whether the size of the uploaded file exceeds the permitted size
46. Function check_size (){
47. If ($ this-> ph_size> $ this-> al_ph_size ){
48. $ This-> showerror ("uploading images exceeds 2000KB ");
49. }
50. }
51. // Determine the file type
52. Function check_type (){
53. If (! In_array ($ this-> ph_type, $ this-> al_ph_type )){
54. $ This-> showerror ("Incorrect Image Upload type ");
55. }
56. }
57. // Upload an image
58. Function up_photo (){
59. If (! Move_uploaded_file ($ this-> ph_tmp_name, $ this-> ph_name )){
60. $ This-> showerror ("File Upload error ");
61. }
62. }
63. // Preview the image
64. Function showphoto (){
65. If ($ this-> preview = 1 ){
66. If ($ this-& gt; imgsize [0] & gt; 2000 ){
67. $ This-> imgsize [0] = $ this-> imgsize [0] * $ this-> previewsize;
68. $ This-> imgsize [1] = $ this-> imgsize [1] * $ this-> previewsize;
69. }
70. Echo (" ph_name} "width =" {$ this-> imgsize [0]} "height =" {$ this-> imgsize [1]} "> ");
71. }
72. }
73. // Error message
74. Function showerror ($ errorstr ){
75. Echo "<script language = javascript> alert ($ errorstr); location = javascript: history. go (-1); </script> ";
76. Exit ();
77. }
78. Function save (){
79. $ This-> check_path ();
80. $ This-> check_size ();
81. $ This-> check_type ();
82. $ This-> up_photo ();
83. $ This-> showphoto ();
84. }
85. }
86. ?>