文档目录结构如下：
SqlHelper.php代码如下：
<?php /** * Created by JetBrains PhpStorm. * User: lee * Date: 13-7-26 * Time: 下午8:30 * To change this template use File | Settings | File Templates. */ class SqlHelper{ private $mysqli; private static $host="localhost"; private static $user="root"; private static $pwd=""; private static $db="world"; private $sql=false; private $result=false; function __construct(){ $this->mysqli=new MySQLi(self::$host,self::$user,self::$pwd,self::$db); if($this->mysqli->connect_error){ die("连接数据库失败！ ".$this->mysql->connect_error); } $this->mysqli->query("set names utf8"); } function execute_dql_all($sql){ //执行查询语句 $arr=array(); $this->result=$this->mysqli->query($sql) or die ($this->mysql->connect_error); //将数据转存到$arr数组中 while($row=mysqli_fetch_array($this->result,MYSQL_BOTH)){ $arr[]=$row; } $this->result->free(); return $arr; } function execute_dql_num($sql){ //执行查询语句 $arr=array(); $this->result=$this->mysqli->query($sql) or die ($this->mysql->connect_error); //将数据转存到$arr数组中 while($row=mysqli_fetch_array($this->result,MYSQLI_NUM)){ $arr[]=$row; } $this->result->free(); return $arr; } function execute_dql_assoc($sql){ //执行查询语句 $arr=array(); $this->result=$this->mysqli->query($sql) or die ($this->mysql->connect_error); //将数据转存到$arr数组中 while($row=mysqli_fetch_array($this->result,MYSQLI_ASSOC)){ $arr[]=$row; } $this->result->free(); return $arr; } //查询某表中的记录数 function execute_dql_counts($table,$id="*"){ $this->sql="select count($id) from $table"; $this->result=$this->mysqli->query($this->sql); $row=mysqli_fetch_all($this->result); $this->result->free(); return $row[0][0]; } function execute_dml($sql){ //执行正删改 $this->result=$this->mysqli->query($sql); if(!$this->result){ return -1;//执行正删改失败 }else{ if($this->mysqli->affected_rows>0){ return 1;//执行正删改成功，影响行数 }else{ return 0;//执行正删改成功，但没有影响行数 } } } }
Paging.php代码如下：
<?php /** * Created by JetBrains PhpStorm. * User: lee * Date: 13-7-27 * Time: 下午2:48 * To change this template use File | Settings | File Templates. */ header("Content-type:text/html;charset=utf-8;"); require_once("SqlHelper.php"); class Paging { private $sqlHelper=false; private $pageCount=false;//页数 private $counts=false;//总记录数 private $returnArr=false;//分页超链接的分页 function __construct(){ $this->sqlHelper=new SqlHelper(); $this->returnArr=array(); } /* * 参数说明 * * $table 分页时对那个表的数据分页 * $id 辅助查询当前分页的数据表的总记录数 * $pageSize 每页显示多少条信息记录数 * $pagingSize 分页栏每次循环显示出来的个数 * $nowPage 当前是第几页，默认第一页 * $href 分页栏的超链接将要往哪里连接 */ function paging_prev_next($table,$id="*",$pageSize,$pagingSize,$nowPage=1,$href){ $this->counts=$this->sqlHelper->execute_dql_counts($table,$id); $this->pageCount=ceil($this->counts/$pageSize); $this->returnArr["count"]=$this->counts; $this->returnArr["start"]=($nowPage-1)*$pageSize; $this->returnArr["limit"]=$pageSize; if($nowPage>$this->pageCount || $nowPage<=0){ return false; } $t=(ceil($nowPage/$pagingSize)-1)*$pagingSize+1; $pre=$nowPage-$pagingSize; $nex=$nowPage+$pagingSize; echo " <span>{$nowPage}/{$this->pageCount}</span> <a href='{$href}?nowPage={$pre}'><</a>"; for($i=$t;$i<$t+$pagingSize;$i++){ if($i*$pageSize>$this->pageCount*$pageSize){ break; }else{ if($nowPage==$i){ echo " <a href='{$href}?nowPage={$i}'>{$i}</a>"; }else{ echo " <a href='{$href}?nowPage={$i}'>{$i}</a>"; } } } echo " <a href='{$href}?nowPage={$nex}'>></a>"; return $this->returnArr; } }
paging-list-link.css代码如下：
/** * Created by JetBrains PhpStorm. * User: lee * Date: 13-7-27 * Time: 下午5:56 * To change this template use File | Settings | File Templates. */ .paging-list-a{ border:1px solid #b5b5af; background-color:#efebed; font-family: 'Meiryo UI'; font-size: 16px; font-weight: 600; padding: 0px 8px 0px 8px; /*cursor: pointer;*/ text-decoration: none; color: #292927; } .paging-list-a-withBg{ background-color: #1D92E2; color: white; }
usePaging.php代码如下：
<!DOCTYPE html> <html> <head> <title></title> <link type="text/css" href="https://www.jb51.net/paging-list-link.css"> </head> <body> <?php header("Content-type:text/html;charset=utf-8;"); require_once 'Paging.php'; $paging=new Paging(); //参数说明 /* * $table 分页时对那个表的数据分页 * $id 辅助查询当前分页的数据表的总记录数 * $pageSize 每页显示多少条信息记录数 * $pagingSize 分页栏每次循环显示出来的个数 * $nowPage 当前是第几页，默认第一页 * $href 分页栏的超链接将要往哪里连接，当前页链接地址 */ //控制起始页为 $nowPage=1; if(isset($_GET["nowPage"])){ $nowPage=$_GET["nowPage"]; } //定义分页所需参数 $meiyexiansi=10; $meiyelianjieshu=10; $receiveArr=array(); $receiveArr=$paging->paging_prev_next("city","ID",$meiyexiansi,$meiyelianjieshu,$nowPage,"usePaging.php"); //容错判断 if(!$receiveArr){ return; } //查询每页需要显示的数据，大小限制存在 $receiveArr 数组中 $sqlHelper=new SqlHelper(); $result=$sqlHelper->execute_dql_num("select * from city limit ".$receiveArr['start'].",".$receiveArr['limit'].""); echo "<pre>"; print_r($result); echo "</pre>"; ?> </body> </html>
所使用的数据库为 MySQL5.6 所自带的 world 数据库
下面是运行的效果截图：
不过代码还有个 Bug 。就是翻页到最后的时候会出现显示不了，原因在于 Paging.php 文件的 41~43 行左右判断有问题。
错误代码如下：
if($nowPage>$this->pageCount || $nowPage<=0){ return false; }
