Php paging and calling methods

Source: Internet
Author: User
Php paging and calling methods

  1. /**

  2. * Php paging code
  3. * Edit: bbs.it-home.org
  4. */
  5. Class Page {
  6. Private $ total; // total records
  7. Private $ pagesize; // The number of entries displayed on each page
  8. Private $ limit; // limit
  9. Private $ page; // The current page number.
  10. Private $ pagenum; // the total page number.
  11. Private $ url; // address
  12. Private $ bothnum; // The number of numeric pages on both sides

  13. // Constructor initialization

  14. Public function _ construct ($ _ total, $ _ pagesize ){
  15. $ This-> total = $ _ total? $ _ Total: 1;
  16. $ This-> pagesize = $ _ pagesize;
  17. $ This-> pagenum = ceil ($ this-> total/$ this-> pagesize );
  18. $ This-> page = $ this-> setPage ();
  19. $ This-> limit = "LIMIT". ($ this-> page-1) * $ this-> pagesize. ", $ this-> pagesize ";
  20. $ This-> url = $ this-> setUrl ();
  21. $ This-> bothnum = 2;
  22. }

  23. // Interceptor

  24. Private function _ get ($ _ key ){
  25. Return $ this-> $ _ key;
  26. }

  27. // Obtain the current page number

  28. Private function setPage (){
  29. If (! Empty ($ _ GET ['Page']) {
  30. If ($ _ GET ['Page']> 0 ){
  31. If ($ _ GET ['Page']> $ this-> pagenum ){
  32. Return $ this-> pagenum;
  33. } Else {
  34. Return $ _ GET ['Page'];
  35. }
  36. } Else {
  37. Return 1;
  38. }
  39. } Else {
  40. Return 1;
  41. }
  42. }

  43. // Obtain the address

  44. Private function setUrl (){
  45. $ _ Url = $ _ SERVER ["REQUEST_URI"];
  46. $ _ Par = parse_url ($ _ url );
  47. If (isset ($ _ par ['query']) {
  48. Parse_str ($ _ par ['query'], $ _ query );
  49. Unset ($ _ query ['Page']);
  50. $ _ Url = $ _ par ['path']. '? '. Http_build_query ($ _ query );
  51. }
  52. Return $ _ url;
  53. } // Numeric Directory
  54. Private function pageList (){
  55. For ($ I = $ this-> bothnum; $ I >=1; $ I --){
  56. $ _ Page = $ this-> page-$ I;
  57. If ($ _ page <1) continue;
  58. $ _ Pagelist. = 'URL. '& page ='. $ _ page. '">'. $ _ page .'';
  59. }
  60. $ _ Pagelist. = ''. $ this-> page .'';
  61. For ($ I = 1; $ I <= $ this-> bothnum; $ I ++ ){
  62. $ _ Page = $ this-> page + $ I;
  63. If ($ _ page> $ this-> pagenum) break;
  64. $ _ Pagelist. = 'URL. '& page ='. $ _ page. '">'. $ _ page .'';
  65. }
  66. Return $ _ pagelist;
  67. }

  68. // Homepage

  69. Private function first (){
  70. If ($ this-> page> $ this-> bothnum + 1 ){
  71. Return 'URL. '"> 1 ...';
  72. }
  73. }

  74. // Previous Page

  75. Private function prev (){
  76. If ($ this-> page = 1 ){
  77. Return 'previous page ';
  78. }
  79. Return 'URL. '& page ='. ($ this-> page-1). '"> Previous page ';
  80. }

  81. // Next page

  82. Private function next (){
  83. If ($ this-> page ==$ this-> pagenum ){
  84. Return 'next page ';
  85. }
  86. Return 'URL. '& page ='. ($ this-> page + 1). '"> Next page ';
  87. }

  88. // Last Page

  89. Private function last (){
  90. If ($ this-> pagenum-$ this-> page> $ this-> bothnum ){
  91. Return '... url.' & page = '. $ this-> pagenum.' "> '. $ this-> pagenum .'';
  92. }
  93. }

  94. // Paging information

  95. Public function showpage (){
  96. $ _ Page. = $ this-> first ();
  97. $ _ Page. = $ this-> pageList ();
  98. $ _ Page. = $ this-> last ();
  99. $ _ Page. = $ this-> prev ();
  100. $ _ Page. = $ this-> next ();
  101. Return $ _ page;
  102. }
  103. }
  104. ?>

Paging style:

Instructions for use:

  1. $ _ Page = new Page ($ _ total, $ _ pagesize); // where $ _ total indicates the total number of data sets, and $ _ pagesize indicates the number displayed on each page.
  2. ?>

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