我正在寻找智能分页的示例算法。聪明地说,我的意思是,例如,我只想显示当前页面的2个相邻页面,因此我截断了它而不是结束一个冗长的页面列表。
这是一个简单的例子,可以使它更清楚……这就是我现在所拥有的:
Pages: 1 2 3 4 [5] 6 7 8 9 10 11
这就是我要结束的事情:
Pages: ... 3 4 [5] 6 7 ...
(在此示例中,我仅显示当前页面的2个相邻页面)
我正在PHP / Mysql中实现它,并且已经对“基本”分页(没有任何删节)进行了编码,我只是在寻找一个示例来对其进行优化……只要可以,就可以是任何语言的示例它给我一个关于如何实现它的想法…
前一段时间我也有同样的需求。
这是我用来完成此工作的文章(使用PHP代码): Digg样式分页
它的运行速度非常快,并且为您尝试做的事情增加了一些内容,例如:
[1] 2 3 4 5 6 ... 100 1 [2] 3 4 5 6 ... 100 ... 1 ... 4 5 [6] 7 8 ... 100
这是来自断开链接的代码:
<?php /* Place code to connect to your DB here. */ // How many adjacent pages should be shown on each side? $adjacents = 3; /* First get total number of rows in data table. If you have a WHERE clause in your query, make sure you mirror it here. */ $query = "SELECT COUNT(*) as num FROM portfolio"; $total_pages = mysql_fetch_array(mysql_query($query)); $total_pages = $total_pages[num]; /* Setup vars for query. */ $limit = 2; //how many items to show per page if($page) $start = ($page - 1) * $limit; //first item to display on this page else $start = 0; //if no page var is given, set start to 0 /* Get data. */ $query = "SELECT category, uname, title FROM portfolio LIMIT $start, $limit"; $portfolio = mysql_query($query); /* Setup page vars for display. */ if ($page == 0) $page = 1; //if no page var is given, default to 1. $prev = $page - 1; //previous page is page - 1 $next = $page + 1; //next page is page + 1 $lastpage = ceil($total_pages/$limit); //lastpage is = total pages / items per page, rounded up. $lpm1 = $lastpage - 1; //last page minus 1 /* Now we apply our rules and draw the pagination object. We're actually saving the code to a variable in case we want to draw it more than once. */ $pagination = ""; if($lastpage > 1) { $pagination .= "<div class="\"pagination\"">"; //previous button if ($page > 1) $pagination.= "<a href="\"diggstyle.php?page=$prev\"">« previous</a>"; else $pagination.= "<span class="\"disabled\"">« previous</span>"; //pages if ($lastpage < 7 + ($adjacents * 2)) //not enough pages to bother breaking it up { for ($counter = 1; $counter <= $lastpage; $counter++) { if ($counter == $page) $pagination.= "<span class="\"current\"">$counter</span>"; else $pagination.= "<a href="\"diggstyle.php?page=$counter\"">$counter</a>"; } } elseif($lastpage > 5 + ($adjacents * 2)) //enough pages to hide some { //close to beginning; only hide later pages if($page < 1 + ($adjacents * 2)) { for ($counter = 1; $counter < 4 + ($adjacents * 2); $counter++) { if ($counter == $page) $pagination.= "<span class="\"current\"">$counter</span>"; else $pagination.= "<a href="\"diggstyle.php?page=$counter\"">$counter</a>"; } $pagination.= "..."; $pagination.= "<a href="\"diggstyle.php?page=$lpm1\"">$lpm1</a>"; $pagination.= "<a href="\"diggstyle.php?page=$lastpage\"">$lastpage</a>"; } //in middle; hide some front and some back elseif($lastpage - ($adjacents * 2) > $page && $page > ($adjacents * 2)) { $pagination.= "<a href="\"diggstyle.php?page=1\"">1</a>"; $pagination.= "<a href="\"diggstyle.php?page=2\"">2</a>"; $pagination.= "..."; for ($counter = $page - $adjacents; $counter <= $page + $adjacents; $counter++) { if ($counter == $page) $pagination.= "<span class="\"current\"">$counter</span>"; else $pagination.= "<a href="\"diggstyle.php?page=$counter\"">$counter</a>"; } $pagination.= "..."; $pagination.= "<a href="\"diggstyle.php?page=$lpm1\"">$lpm1</a>"; $pagination.= "<a href="\"diggstyle.php?page=$lastpage\"">$lastpage</a>"; } //close to end; only hide early pages else { $pagination.= "<a href="\"diggstyle.php?page=1\"">1</a>"; $pagination.= "<a href="\"diggstyle.php?page=2\"">2</a>"; $pagination.= "..."; for ($counter = $lastpage - (2 + ($adjacents * 2)); $counter <= $lastpage; $counter++) { if ($counter == $page) $pagination.= "<span class="\"current\"">$counter</span>"; else $pagination.= "<a href="\"diggstyle.php?page=$counter\"">$counter</a>"; } } } //next button if ($page < $counter - 1) $pagination.= "<a href="\"diggstyle.php?page=$next\"">next »</a>"; else $pagination.= "<span class="\"disabled\"">next »</span>"; $pagination.= "</div>\n"; } ?> <ul> <?php while($item = mysql_fetch_array($portfolio)) { ?> <li><a href="/web/20080709045706/http://www.strangerstudios.com/portfolio//"></a></li> <?php } ?> </ul> <?=$pagination?>