php分页遇到的问题
刚学习php,在php100下载了视频教程,可是根据教程里第十三讲给的分页demo,发现运行出错,请大虾给分析下什么原因呢?数据库表为test,字段包括:id、name、sex;运行下面的demo,可现实第一页内容,但是点击下一页的时候不翻页。url地址为http://localhost/bbs2/page.php?page=2,再点击下一页url为http://localhost/bbs2/page.php?page=2&page=2;这个地址就不对了,应该是http://localhost/bbs2/page.php?page=3吧。
<!--Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--><?php function _PAGEFT($totle, $displaypg = 20, $url = '') { global $page, $firstcount, $pagenav, $_SERVER; $GLOBALS["displaypg"] = $displaypg; if (!$page) $page = 1; if (!$url) { $url = $_SERVER["REQUEST_URI"]; } //URL分析: $parse_url = parse_url($url); $url_query = $parse_url["query"]; //单独取出URL的查询字串 if ($url_query) { $url_query = ereg_replace("(^|&)page=$page", "", $url_query); $url = str_replace($parse_url["query"], $url_query, $url); if ($url_query) $url .= "&page"; else $url .= "page"; } else { $url .= "?page"; } $lastpg = ceil($totle / $displaypg); //最后页,也是总页数 $page = min($lastpg, $page); $prepg = $page -1; //上一页 $nextpg = ($page == $lastpg ? 0 : $page +1); //下一页 $firstcount = ($page -1) * $displaypg; //开始分页导航条代码: $pagenav = "显示第 <B>" . ($totle ? ($firstcount +1) : 0) . "-<b>" . min($firstcount + $displaypg, $totle) . "</b> 条记录,共 $totle 条记录"; //如果只有一页则跳出函数: if ($lastpg 首页 "; if ($prepg) $pagenav .= " <a href="%24url=%24prepg">前页</a> "; else $pagenav .= " 前页 "; if ($nextpg) $pagenav .= " <a href="%24url=%24nextpg">后页</a> "; else $pagenav .= " 后页 "; $pagenav .= " <a href="%24url=%24lastpg">尾页</a> "; //下拉跳转列表,循环列出所有页码: $pagenav .= " 到第 <select name="topage" size="1" onchange='window.location=\"$url=\"+this.value'>\n"; for ($i = 1; $i $i\n"; else $pagenav .= "<option value="$i">$i</option>\n"; } $pagenav .= "</select> 页,共 $lastpg 页"; }include("conn.php");$result=mysql_query("SELECT * FROM `test`");$total=mysql_num_rows($result);//调用pageft(),每页显示10条信息(使用默认的20时,可以省略此参数),使用本页URL(默认,所以省略掉)。_PAGEFT($total,5);echo $pagenav;$result=mysql_query("SELECT * FROM `test` limit $firstcount,$displaypg ");while($row=mysql_fetch_array($result)){echo "<hr><b>".$row[name]." | ".$row[sex];}?></b>
$nowPage = is_numeric($_GET['page']) ? $_GET['page'] : 1; // 当前页$displaypg = 5; //每页显示五个条目;firstcount = ($nowPage-1)*$displaypg;$result=mysql_query("SELECT * FROM `test` limit $firstcount,$displaypg ");<br><font color="#e78608">------解决方案--------------------</font><br>不翻页是你的page没有得到<br><br>这分页程序够雷人的<br><br>太坑人了<br><br>写那么大一片<br><br>去掉一半运行都不会有问题<br><font color="#e78608">------解决方案--------------------</font><br>