Write a powerful class for uploading images in PHP_PHP Tutorial

2. class upphoto{
3. public $previewsize=0.125 ; //Preview image ratio
4. public $preview=0 ; //Whether to generate a preview, 1 if yes, 0 if not
5. public $datetime; //Random number
6. public $ph_name; //Upload 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; //Upload image size, used to determine display ratio
12. public $al_ph_type=array(image/jpg,image /jpeg,image/png,image/pjpeg,image/gif,image/bmp,image/x-png); //Allow image type to upload
13. public $al_ph_size=1000000; //Allow file size to upload
14. function __construct(){
15. $this->set_datatime();
16. }
17. function set_datatime(){
18. $this->datetime=date("YmdHis");
19. }
20. //Get file type
21. function get_ph_type($phtype){
22. $this->ph_type=$phtype;
23. }
24. //Get file size
25. function get_ph_size($phsize){
26. $this ->ph_size=$phsize."
    ";
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. //Get the original text File name
34. function get_ph_name($phname){
35. $this->ph_name=$this->ph_path.$this->datetime.strrchr($phname,".") ; //strrchr gets the position where the point in the file last appeared
36. //$this->ph_name=$this->datetime.strrchr($phname,"."); //strrchr gets the file The position where the point last appeared
37. return $this->ph_name;
38. }
39. // Determine the uploaded file storage directory
40. function check_path( ){
41. if(!file_exists($this->ph_path)){
42. mkdir($this->ph_path);
43. }
44. }
45. //Determine whether the uploaded file exceeds the allowed size
46. function check_size(){
47. if($this->ph_size>$this->al_ph_size) {
48. } $this->showerror("Uploaded image exceeds 2000KB");
49. }
50. }
51. //Determine the file type
52. function check_type(){
53. if(!in_array($this->ph_type,$this->al_ph_type)){
54. $this->showerror("Upload Wrong image type");
55. }
56. }
57. //Upload image
58. function up_photo(){
59. if(! move_uploaded_file($this->ph_tmp_name,$this->ph_name)){
60. $this->showerror("Error uploading file");
61. }
62. }
63. //Picture preview
64. function showphoto(){
65. if($this->preview==1){
66. if( $this->imgsize[0]>2000){
67.      $this->imgsize[0]=$this->imgsize[0]*$this->previewsize;
68.                                                                                                                                                                                                                                                                            ="{$this->ph_name}" width="{$this->imgsize[0]}" height="{$this->imgsize[1]}">");
69. }
70. }
71. // Error message
72. function showerror($errorstr){
73. echo "";
74. exit();
75. }
76. function save(){
77. $this ->check_path();
78. $this->check_size();
79. $this->check_type();
80. $this->up_photo( );
81. $this->showphoto();
82. }
83. }
84. ?>

http://www.bkjia.com/PHPjc/486216.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/486216.htmlTechArticle?php class upphoto{ public $previewsize=0.125; //Preview image ratio public $preview=0; // Whether to generate a preview, 1 if yes, 0 if not public $datetime; //random number public $ph_name; //upload...