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php mysql paging class (php novice entry)

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Release： 2016-07-25 09:00:54
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  3. /***

  4. * php mysql paging class
  5. * Organizing http://bbs.it-home.org
  6. */
  7. class Pagination{
  8. private $_result;
  9. private $_count; //记录数
  10. private $_pageMax; //最大页
  11. private $_page; //当前页
  12. private $_url;
  13. private $_startPage;//分页条起码
  14. private $_endPage; // 分页条止码
  15. private $_nextPage; //上一页
  16. private $_prePage; //下一页

  17. function __construct($table, $pageSize, $getPage){

  18. $this->_result = $GLOBALS['db']->query('SELECT * FROM '.$table);
  19. $this->_count = $GLOBALS['db']->getRecordNum();
  20. $this->_pageMax = ceil($this->_count/$pageSize);
  21. $this->_result = '';

  22. if($_GET[$getPage] == '')

  23. $this->_page = 1;
  24. else
  25. $this->_page= max(intval($_GET[$getPage]), 1);
  27. $this->_page = min($this->_page, $this->_pageMax);

  28. $offset = ($this->_page - 1) * $pageSize;

  29. $sql = 'SELECT * FROM '.$table.' LIMIT '. $offset .','. $pageSize;
  30. $this->_result = $GLOBALS['db']->query($sql);
  31. }
  33. function getRecord(){
  34. return $GLOBALS['db']->getRecord();
  35. }
  37. function getPageBar($url = '?', $barLn = 10, $style = 1){
  38. if($style == 1){
  39. if($barLn % 2 != 0 ){
  40. $midder = ceil($barLn / 2);
  41. $big_repair = $midder - 1 ;//当上面以进一法取整，则这里为减1，反之为加1
  42. }else{
  43. $midder = $big_repair = $barLn / 2;
  44. }
  45. $sml_repair = $midder- 1;
  47. $this->_startPage = ($this->_page + $midder) > $this->_pageMax ? $this->_pageMax - $barLn : $this->_page - $sml_repair;
  48. $this->_endPage = $this->_page < $midder ? $barLn : $this->_page + $big_repair;

  50. }elseif($style == 2){
  52. if($this->_page % $barLn == 0){
  53. $this->_startPage = $this->_page;
  54. }else{
  55. $this->_startPage = ($this->_page > $barLn)? $this->_page - ($this->_page % $barLn ) : 1;
  56. }
  57. $this->_endPage = $this->_startPage + $barLn - 1;
  58. }
  59. $this->_url = $url;
  60. $this->_nextPage = $this->_page + 1;
  61. $this->_prePage = $this->_page - 1;
  62. $this->_startPage = max($this->_startPage, 1);//至少从第一页开始
  63. $this->_endPage = min($this->_endPage, $this->_pageMax);//最多只到末页
  66. $this->_result = '当前是：'.$this->_page.'/'.$this->_pageMax.'页，共'.$this->_count.'条记录';
  68. if ($this->_page > 1)
  69. $this->_result .= '
  70. 9
  71. 3
  72. ';
  73. else
  74. $this->_result .= '9
  75. 3';
  77. for($i = $this->_startPage; $i <= $this->_endPage; $i++) {
  78. if ($this->_page == $i)
  79. $this->_result .= ''.$i.'';
  80. else
  81. $this->_result.= ''.$i.'';
  82. }
  84. if ($this->_page != $this->_pageMax) {
  85. $this->_result .= '4';
  86. $this->_result .= ':';
  87. } else {
  88. $this->_result.= '4:';
  89. }
  91. $this->_result.= '
  94. ';
  95. return $this->_result;
  96. }
  97. }
  98. ?>

复制代码

2、调用示例

  2. $page = new Pagination($table, 5, 'page');
  3. while($row = $page->getRecord()){
  4. echo $row[0],'
    ';
  5. }
  6. echo $page->getPageBar('?',8, 1);
  7. ?>
复制代码


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php mysql分页类(php新手入门)
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