1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 | <?php class SubPages{ private $each_disNums ; //每页显示的条目数 private $nums ; //总条目数 private $current_page ; //当前被选中的页 private $sub_pages ; //每次显示的页数 private $pageNums ; //总页数 private $page_array = array (); //用来构造分页的数组 private $subPage_link ; //每个分页的链接 private $subPage_type ; //显示分页的类型 /* __construct是SubPages的构造函数,用来在创建类的时候自动运行. @$each_disNums 每页显示的条目数 @nums 总条目数 @current_num 当前被选中的页 @sub_pages 每次显示的页数 @subPage_link 每个分页的链接 @subPage_type 显示分页的类型 当@subPage_type=1的时候为普通分页模式 example: 共4523条记录,每页显示10条,当前第1/453页 [首页] [上页] [下页] [尾页] 当@subPage_type=2的时候为经典分页样式 example: 当前第1/453页 [首页] [上页] 1 2 3 4 5 6 7 8 9 10 [下页] [尾页] */ function __construct( $each_disNums , $nums , $current_page , $sub_pages , $subPage_link , $subPage_type ){ $this ->each_disNums= intval ( $each_disNums ); $this ->nums= intval ( $nums ); if (! $current_page ){ $this ->current_page=1; } else { $this ->current_page= intval ( $current_page ); } $this ->sub_pages= intval ( $sub_pages ); $this ->pageNums= ceil ( $nums / $each_disNums ); $this ->subPage_link= $subPage_link ; $this ->show_SubPages( $subPage_type ); //echo $this->pageNums."--".$this->sub_pages; } /* __destruct析构函数,当类不在使用的时候调用,该函数用来释放资源。 */ function __destruct(){ unset( $each_disNums ); unset( $nums ); unset( $current_page ); unset( $sub_pages ); unset( $pageNums ); unset( $page_array ); unset( $subPage_link ); unset( $subPage_type ); } /* show_SubPages函数用在构造函数里面。而且用来判断显示什么样子的分页 */ function show_SubPages( $subPage_type ){ if ( $subPage_type == 1){ $this ->subPageCss1(); } elseif ( $subPage_type == 2){ $this ->subPageCss2(); } } /* 用来给建立分页的数组初始化的函数。 */ function initArray(){ for ( $i =0; $i < $this ->sub_pages; $i ++){ $this ->page_array[ $i ]= $i ; } return $this ->page_array; } /* construct_num_Page该函数使用来构造显示的条目 即使:[1][2][3][4][5][6][7][8][9][10] */ function construct_num_Page(){ if ( $this ->pageNums < $this ->sub_pages){ $current_array = array (); for ( $i =0; $i < $this ->pageNums; $i ++){ $current_array [ $i ]= $i +1; } } else { $current_array = $this ->initArray(); if ( $this ->current_page <= 3){ for ( $i =0; $i < count ( $current_array ); $i ++){ $current_array [ $i ]= $i +1; } } elseif ( $this ->current_page <= $this ->pageNums && $this ->current_page > $this ->pageNums - $this ->sub_pages + 1 ){ for ( $i =0; $i < count ( $current_array ); $i ++){ $current_array [ $i ]=( $this ->pageNums)-( $this ->sub_pages)+1+ $i ; } } else { for ( $i =0; $i < count ( $current_array ); $i ++){ $current_array [ $i ]= $this ->current_page-2+ $i ; } } } return $current_array ; } /* 构造普通模式的分页 共4523条记录,每页显示10条,当前第1/453页 [首页] [上页] [下页] [尾页] */ function subPageCss1(){ $subPageCss1Str = "" ; $subPageCss1Str .= "共" . $this ->nums. "条记录," ; $subPageCss1Str .= "每页显示" . $this ->each_disNums. "条," ; $subPageCss1Str .= "当前第" . $this ->current_page. "/" . $this ->pageNums. "页 " ; if ( $this ->current_page > 1){ $firstPageUrl = $this ->subPage_link. "1" ; $prewPageUrl = $this ->subPage_link.( $this ->current_page-1); $subPageCss1Str .= "[<a href='$firstPageUrl'>首页</a>] " ; $subPageCss1Str .= "[<a href='$prewPageUrl'>上一页</a>] " ; } else { $subPageCss1Str .= "[首页] " ; $subPageCss1Str .= "[上一页] " ; } if ( $this ->current_page < $this ->pageNums){ $lastPageUrl = $this ->subPage_link. $this ->pageNums; $nextPageUrl = $this ->subPage_link.( $this ->current_page+1); $subPageCss1Str .= " [<a href='$nextPageUrl'>下一页</a>] " ; $subPageCss1Str .= "[<a href='$lastPageUrl'>尾页</a>] " ; } else { $subPageCss1Str .= "[下一页] " ; $subPageCss1Str .= "[尾页] " ; } echo $subPageCss1Str ; } /* 构造经典模式的分页 当前第1/453页 [首页] [上页] 1 2 3 4 5 6 7 8 9 10 [下页] [尾页] */ function subPageCss2(){ $subPageCss2Str = "" ; $subPageCss2Str .= "当前第" . $this ->current_page. "/" . $this ->pageNums. "页 " ; if ( $this ->current_page > 1){ $firstPageUrl = $this ->subPage_link. "1" ; $prewPageUrl = $this ->subPage_link.( $this ->current_page-1); $subPageCss2Str .= "[<a href='$firstPageUrl'>首页</a>] " ; $subPageCss2Str .= "[<a href='$prewPageUrl'>上一页</a>] " ; } else { $subPageCss2Str .= "[首页] " ; $subPageCss2Str .= "[上一页] " ; } $a = $this ->construct_num_Page(); for ( $i =0; $i < count ( $a ); $i ++){ $s = $a [ $i ]; if ( $s == $this ->current_page ){ $subPageCss2Str .= "[<span style='color:red;font-weight:bold;'>" . $s . "</span>]" ; } else { $url = $this ->subPage_link. $s ; $subPageCss2Str .= "[<a href='$url'>" . $s . "</a>]" ; } } if ( $this ->current_page < $this ->pageNums){ $lastPageUrl = $this ->subPage_link. $this ->pageNums; $nextPageUrl = $this ->subPage_link.( $this ->current_page+1); $subPageCss2Str .= " [<a href='$nextPageUrl'>下一页</a>] " ; $subPageCss2Str .= "[<a href='$lastPageUrl'>尾页</a>] " ; } else { $subPageCss2Str .= "[下一页] " ; $subPageCss2Str .= "[尾页] " ; } echo $subPageCss2Str ; } } ?> |
演示代码:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | <?php require_once ( "SubPages.php" ); //每页显示的条数 $page_size =20; //总条目数 $nums =1024; //每次显示的页数 $sub_pages =10; //得到当前是第几页 $pageCurrent = $_GET [ "p" ]; //if(!$pageCurrent) $pageCurrent=1; $subPages = new SubPages( $page_size , $nums , $pageCurrent , $sub_pages , "test.php?p=" ,2); ?> |
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