经典php 分页类- php通用分页类
<?php class My_Lib_pages { private $each_disNums; //每页显示的条目数 private $nums; //总条目数 var $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); $nums = $nums == 0 ? 1 : $nums; $this->nums = intval($nums); $this->pageNums = ceil($nums / $each_disNums); $this->current_page = intval($current_page); $this->current_page = $this->current_page <= 0 ? 1 : $this->current_page; $this->current_page = $this->current_page > $this->pageNums ? 1 : $this->current_page; $this->sub_pages = intval($sub_pages); $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] "; } 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<span style=color:red;>" . $this->current_page . "</span>/" . $this->pageNums . "页 "; if ($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'><<</a>"; } else { $subPageCss2Str.= "<span class=disabled>首页</span>"; $subPageCss2Str.= "<span class=disabled><<</span>"; } $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; $subPageCss2Str.= "<span class=current><a href='$url'>" . $s . "</a></span>"; } } if ($this->current_page < $this->pageNums) { $lastPageUrl = $this->subPage_link . $this->pageNums; $nextPageUrl = $this->subPage_link . ($this->current_page + 1); $subPageCss2Str.= " <a href='$nextPageUrl'>>></a> "; $subPageCss2Str.= "<a href='$lastPageUrl'>尾页</a> "; } else { $subPageCss2Str.= "<span class=disabled>>></span>"; $subPageCss2Str.= "<span class=disabled>尾页</span>"; } return $subPageCss2Str; } }
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