php分页类
jopen
10年前
<?php class Page { 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 $subPage_link; //每个分页的链接 /** * * __construct是SubPages的构造函数，用来在创建类的时候自动运行. * @$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 Page($each_disNums, $nums, $current_page, $sub_pages) { $this->each_disNums = intval($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); $this->subPage_link =$_SERVER['PHP_SELF']."?page=";; } /** * 照顾低版本 */ /*function __construct($each_disNums, $nums, $current_page, $sub_pages, $subPage_linke) { $this->Page($each_disNums, $nums, $current_page, $sub_pages, $subPage_link); } */ /* __destruct析构函数，当类不在使用的时候调用，该函数用来释放资源。 */ function __destruct() { unset ($each_disNums); unset ($nums); unset ($current_page); unset ($sub_pages); unset ($pageNums); unset ($page_array); unset ($subPage_link); } /* 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] "; } return $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] "; } return $subPageCss2Str; } } //测试一下，看看两种不同效果 $current_page=isset($_GET['page'])?intval($_GET['page']):1;//获取用户GET提交的page，如果没有就默 $t = new Page(10, 100, $current_page, 5); echo $t->subPageCss2(); echo "<br>"; echo $t->subPageCss1(); ?>