PHP array-based paging function (core function array_slice ())

2. <?php
4. /**
6. * Number of Components page function core function Array_slice
8. * Before using this function, all the data inside the database must be queried in a certain order to be stored in the array.
10. * $count How many data per page
12. * $page Current Page
14. * $array all the arrays queried
16. * Order 0-Invariant 1-Reverse order
18. */
22. function Page_array ($count,$page,$array,$order) {
24. global $countpage; #定全局变量
26. $page = (empty ($page))?' 1 ':$page; #判断当前页面是否为空 if it is empty, it is represented as the first page
28. $start = ($page-1) *$count; #计算每次分页的开始位置
30. if ($order ==1) {
32. $array =array_reverse ($array);
34. }
36. $totals =count ($array);
38. $countpage =ceil ($totals/$count); #计算总页面数
40. $pagedata =Array ();
42. $pagedata =array_slice ($array,$start,$count);
44. return $pagedata; #返回查询数据
46. }
48. /**
50. * Paging and display functions
52. * $countpage Global variables, write
54. * $url Current URL
56. */
58. function Show_array ($countpage,$url) {
60. $page =empty ($_get[' page ')? 1:$_get[' page ';
62. if ($page > 1) {
64. $uppage =$page-1;
68. }else{
70. $uppage = 1;
72. }
76. if ($page < $countpage) {
78. $nextpage =$page +1;
82. }else{
84. $nextpage =$countpage;
86. }
90. $str =' <div style= ' border:1px; width:300px; height:30px; color: #9999CC ">";
92. $str. ="<span> Total {$countpage} page/{$page} page </span>";
94. $str. ="<span><a href= ' $url? page=1 ' > Home </a></span>";
96. $str. ="<span><a href= ' $url? page={$uppage} ' > Prev </a></span>";
98. $str. ="<span><a href= ' $url? page={$nextpage} ' > Next </a></span>";
100. $str. ="<span><a href= ' $url? page={$countpage} ' > Last </a></span>";
102. $str. =' </div> ';
104. return $str;
106. }
108. ?>

PHP array-based paging function (core function array_slice ())