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php分页查询 - 附php分页代码

Mar 05, 2017 am 10:33 AM
php paging query

php分页查询通过引用page.class.php分页工具,就好写多了;

以下就是php分页代码

1.首先要有显示的内容:


复制代码

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>无标题文档</title>
</head>

<body>

<h1>分页</h1>

<table width="100%" border="1" cellpadding="0" cellspacing="0">
    <tr>
        <td>地区代号</td>
        <td>地区名称</td>
        <td>父级代号</td>
    </tr>


复制代码

 <?php
    include ("db.class.php");
    $db = new db();
    $sql = "select * from chinastates ";
$arr = $db->Query($sql);//默认=1可以不写
    foreach($arr as $v)
    {
        echo "<tr>
        <td>{$v[0]}</td>
        <td>{$v[1]}</td>
        <td>{$v[2]}</td>
    </tr>";
    }
    ?>

复制代码

 

</table>
</body>

复制代码

 

图:

2.引用page.class.php分页工具造对象,把总数查出来吧:


复制代码

 include ("page.class.php");
//查总条数
$sz = "select count(*) from chinastates";
$az = $db->Query($sz);

//1.造对象
$page = new page($az[0][0],10);
//一般只写两个参数,第一个数据的总条数
//取两个索引0:先取索引0二维数组,取到一位数组后取索引0
//第二个参数,显示10条


$sql = "select * from chinastates ".$page->limit;
//2.直接在sql语句后面拼接上$page(分页类)里面的limit,就可以完成分页
$arr = $db->Query($sql);//默认=1可以不写

复制代码

 

3.输出:

<?php
//3.输出分页信息
echo $page->fpage();
//分页对象中的fpage()方法
?>

总代码:


复制代码

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>无标题文档</title>
</head>
<body>
<h1>分页查询</h1>
<table border="1" cellpadding="0" cellspacing="0">
    <tr>
        <td>地区代号</td>
        <td>地区名称</td>
        <td>父级代号</td>

    </tr>
    <?php
    include ("DBDA.class.php");
    //引用封装类
    $db = new db();
    //造对象
    include "page.class.php";
    //引用page工具
    $aall = "select count(*) from chinastates";
    //查询所有数据
    $arr = $db->Query($aall);
    //调用sql,返回一个数组,
    $page = new page($arr[0][0],10);
    //page类对象,每页显示10条
    $sql = "select * from chinastates ".$page->limit;
    //分页查询,page类调用limit
    $ar = $db->Query($sql);
    //执行,并返回一个数组(数据)
    foreach ($ar as $v)
    //遍历
    {
        echo" <tr>
        <td>{$v[0]}</td>
        <td>{$v[1]}</td>
        <td>{$v[2]}</td>

    </tr>
        ";
    }

//显示

    ?>

</table>
<p>
    <?php
    echo $page->fpage();
//直接输出page类里面的fpage()(输出分页信息)
    ?>
</p>
</body>
</html>

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最后的完成图:

4.分页查询 

查询关键字,在本页分页显示!

首先form表单:

 


复制代码

<form action="fenyechaxun.php" method="get">
    //提交给当前页面,用get传递
<p>
    输入地区名称模糊查询:
    <input type="text" name="area"/>
    <input type="submit" value="查查查"/>
</p>
</form>

复制代码

分页查询的条件

 


复制代码

$tj = "1 = 1 ";
    //条件恒变量
    if(!empty($_GET["area"]))
    //判断传过来的是否非空
    {
        $r = $_GET["area"];
        //为了防止双引号有冲突,给变量
        $tj = "areaname like '%{$r}%' ";
        //条件改变
    }

复制代码

 

查询语句也需要改变一下:

 

 $aall = "select count(*) from chinastates WHERE {$tj}";
    //查询所有数据
  $sql = "select * from chinastates WHERE {$tj} ".$page->limit;
    //分页查询,page类调用limit

输出:

 

<p>
    <?php
    echo $page->fpage();
//直接输出page类里面的fpage()(输出分页信息)
    ?>
</p>

 

上图:

 

 

查询的数据也是以分页的形式:

 


 

代码:




   无标题文档


分页查询





   输入地区名称模糊查询:
   
   




   
       
       
       


    include ("DBDA.class.php");
//引用封装类
$db = new db();
//造对象
include "page.class.php";
//引用page工具

$tj = "1 = 1 ";
//条件恒变量
if(!empty($_GET["area"]))
//判断传过来的是否非空
{
$r = $_GET["area"];
//为了防止双引号有冲突,给变量
$tj = "areaname like '%{$r}%' ";
//条件改变
}

$aall = "select count(*) from chinastates WHERE {$tj}";
//查询所有数据
$arr = $db->Query($aall);
   //调用sql,返回一个数组,
   $page = new page($arr[0][0],10);
   //page类对象,每页显示10条
   $sql = "select * from chinastates WHERE {$tj} ".$page->limit;
   //分页查询,page类调用limit
   $ar = $db->Query($sql);
   //执行,并返回一个数组(数据)
   foreach ($ar as $v)
   //遍历
   {
       echo"


       
       
       


       ";
   }

//显示

?>

地区代号地区名称父级代号
{$v[0]}{$v[1]}{$v[2]}


    echo $page->fpage();
//直接输出page类里面的fpage()(输出分页信息)
   ?>



 


 

 

page.class.php分页工具

/**
file: page.class.php
完美分页类 Page
*/
class Page {
private $total; //数据表中总记录数
private $listRows; //每页显示行数
private $limit; //SQL语句使用limit从句,限制获取记录个数,查数据要查哪几条;limit(0,10)跳过第0条,取10条
private $uri; //自动获取url的请求地址
private $pageNum; //总页数
private $page; //当前页
private $config = array(
'head' => "条记录",
               'prev' => "上一页",
               'next' => "下一页",
               'first'=> "首页",
               'last' => "末页"
           );
       //可以修改的信息

//在分页信息中显示内容,可以自己通过set()方法设置
       private $listNum = 10;                     //默认分页列表显示的个数,下面列表要显示多少条,10个

/**
           构造方法,可以设置分页类的属性
           @param    int    $total        计算分页的总记录数
           @param    int    $listRows    可选的,设置每页需要显示的记录数,默认为25条
           @param    mixed    $query    可选的,为向目标页面传递参数,可以是数组,也可以是查询字符串格式
           @param     bool    $ord    可选的,默认值为true, 页面从第一页开始显示,false则为最后一页
        */
       public function __construct($total, $listRows=25, $query="", $ord=true){
           $this->total = $total;
           $this->listRows = $listRows;
           $this->uri = $this->getUri($query);
           //自动获取游览器地址
           $this->pageNum = ceil($this->total / $this->listRows);//(总共多少条数据/每页显示几条)ceil:向上取整
           //取成员变量,$ord=ture首页
           /*以下判断用来设置当前面*/
           //去当前页
           if(!empty($_GET["page"])) {
               $page = $_GET["page"];
           }else{
               if($ord)
                   $page = 1;
               else
                   $page = $this->pageNum;
           }

if($total > 0) {
               if(preg_match('/\D/', $page) ){
                   $this->page = 1;
               }else{
                   $this->page = $page;
               }
           }else{
               $this->page = 0;
           }

           $this->limit = "LIMIT ".$this->setLimit();
           //LIMIT 10,10
       }

/**
           用于设置显示分页的信息,可以进行连贯操作
           @param    string    $param    是成员属性数组config的下标
           @param    string    $value    用于设置config下标对应的元素值
           @return    object            返回本对象自己$this, 用于连惯操作
        */
       function set($param, $value){
           if(array_key_exists($param, $this->config)){
               $this->config[$param] = $value;
           }
           return $this;
       }

       /* 不是直接去调用,通过该方法,可以使用在对象外部直接获取私有成员属性limit和page的值 */
       function __get($args){
           if($args == "limit" || $args == "page")
               return $this->$args;
           else
               return null;
       }

       /**
           按指定的格式输出分页
           @param    int    0-7的数字分别作为参数,用于自定义输出分页结构和调整结构的顺序,默认输出全部结构
           @return    string    分页信息内容
        */
       function fpage(){
           $arr = func_get_args(); //用户参数

$html[0] = " {$this->total} {$this->config["head"]} ";
           $html[1] = " 本页 ".$this->disnum()." 条 ";

           $html[2] = " 本页从 {$this->start()}-{$this->end()} 条 ";

           $html[3] = " {$this->page}/{$this->pageNum}页 ";

           $html[4] = $this->firstprev();

           $html[5] = $this->pageList();

           $html[6] = $this->nextlast();
           $html[7] = $this->goPage();

           $fpage = '

';
           if(count($arr) < 1)
               $arr = array(0, 1,2,3,4,5,6,7);

           for($i = 0; $i < count($arr); $i++)
               $fpage .= $html[$arr[$i]];

           $fpage .= '

';
           return $fpage;
       }

       /* 在对象内部使用的私有方法,*/
       private function setLimit(){
           if($this->page > 0)
               return ($this->page-1)*$this->listRows.", {$this->listRows}";
           else
               return 0;
       }

/* 在对象内部使用的私有方法,用于自动获取访问的当前URL */
       private function getUri($query){    
           $request_uri = $_SERVER["REQUEST_URI"];    
           $url = strstr($request_uri,'?') ? $request_uri :  $request_uri.'?';

           if(is_array($query))
               $url .= http_build_query($query);
           else if($query != "")
               $url .= "&".trim($query, "?&");

           $arr = parse_url($url);

if(isset($arr["query"])){
               parse_str($arr["query"], $arrs);
               unset($arrs["page"]);
               $url = $arr["path"].'?'.http_build_query($arrs);
           }

           if(strstr($url, '?')) {
               if(substr($url, -1)!='?')
                   $url = $url.'&';
           }else{
               $url = $url.'?';
           }

           return $url;
       }

/* 在对象内部使用的私有方法,用于获取当前页开始的记录数 */
       private function start(){
           if($this->total == 0)
               return 0;
           else
               return ($this->page-1) * $this->listRows+1;
       }

/* 在对象内部使用的私有方法,用于获取当前页结束的记录数 */
       private function end(){
           return min($this->page * $this->listRows, $this->total);
       }

/* 在对象内部使用的私有方法,用于获取上一页和首页的操作信息 */
       private function firstprev(){
           if($this->page > 1) {
               $str = " uri}page=1'>{$this->config["first"]} ";
               $str .= "uri}page=".($this->page-1)."'>{$this->config["prev"]} ";        
               return $str;
           }

}

       /* 在对象内部使用的私有方法,用于获取页数列表信息 */
       private function pageList(){
           $linkPage = " ";

           $inum = floor($this->listNum/2);
           /*当前页前面的列表 */
           for($i = $inum; $i >= 1; $i--){
               $page = $this->page-$i;

if($page >= 1)
                   $linkPage .= "uri}page={$page}'>{$page} ";
           }
           /*当前页的信息 */
           if($this->pageNum > 1)
               $linkPage .= "{$this->page} ";

           /*当前页后面的列表 */
           for($i=1; $i <= $inum; $i++){
$page = $this->page+$i;
               if($page <= $this->pageNum)
                   $linkPage .= "uri}page={$page}'>{$page} ";
               else
                   break;
           }
           $linkPage .= '
';
           return $linkPage;
       }

/* 在对象内部使用的私有方法,获取下一页和尾页的操作信息 */
       private function nextlast(){
           if($this->page != $this->pageNum) {
               $str = " uri}page=".($this->page+1)."'>{$this->config["next"]} ";
               $str .= " uri}page=".($this->pageNum)."'>{$this->config["last"]} ";
               return $str;
           }
       }

/* 在对象内部使用的私有方法,用于显示和处理表单跳转页面 */
       private function goPage(){
               if($this->pageNum > 1) {
               return ' ';
           }
       }

/* 在对象内部使用的私有方法,用于获取本页显示的记录条数 */
       private function disnum(){
           if($this->total > 0){
               return $this->end()-$this->start()+1;
           }else{
               return 0;
           }
       }
   }

1.首先要有显示的内容:


复制代码

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>无标题文档</title>
</head>

<body>

<h1>分页</h1>

<table width="100%" border="1" cellpadding="0" cellspacing="0">
    <tr>
        <td>地区代号</td>
        <td>地区名称</td>
        <td>父级代号</td>
    </tr>


复制代码

 <?php
    include ("db.class.php");
    $db = new db();
    $sql = "select * from chinastates ";
$arr = $db->Query($sql);//默认=1可以不写
    foreach($arr as $v)
    {
        echo "<tr>
        <td>{$v[0]}</td>
        <td>{$v[1]}</td>
        <td>{$v[2]}</td>
    </tr>";
    }
    ?>

复制代码

 

</table>
</body>

复制代码

 

图:

2.引用page.class.php分页工具造对象,把总数查出来吧:


复制代码

 include ("page.class.php");
//查总条数
$sz = "select count(*) from chinastates";
$az = $db->Query($sz);

//1.造对象
$page = new page($az[0][0],10);
//一般只写两个参数,第一个数据的总条数
//取两个索引0:先取索引0二维数组,取到一位数组后取索引0
//第二个参数,显示10条


$sql = "select * from chinastates ".$page->limit;
//2.直接在sql语句后面拼接上$page(分页类)里面的limit,就可以完成分页
$arr = $db->Query($sql);//默认=1可以不写

复制代码

 

3.输出:

<?php
//3.输出分页信息
echo $page->fpage();
//分页对象中的fpage()方法
?>

总代码:


复制代码

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>无标题文档</title>
</head>
<body>
<h1>分页查询</h1>
<table border="1" cellpadding="0" cellspacing="0">
    <tr>
        <td>地区代号</td>
        <td>地区名称</td>
        <td>父级代号</td>

    </tr>
    <?php
    include ("DBDA.class.php");
    //引用封装类
    $db = new db();
    //造对象
    include "page.class.php";
    //引用page工具
    $aall = "select count(*) from chinastates";
    //查询所有数据
    $arr = $db->Query($aall);
    //调用sql,返回一个数组,
    $page = new page($arr[0][0],10);
    //page类对象,每页显示10条
    $sql = "select * from chinastates ".$page->limit;
    //分页查询,page类调用limit
    $ar = $db->Query($sql);
    //执行,并返回一个数组(数据)
    foreach ($ar as $v)
    //遍历
    {
        echo" <tr>
        <td>{$v[0]}</td>
        <td>{$v[1]}</td>
        <td>{$v[2]}</td>

    </tr>
        ";
    }

//显示

    ?>

</table>
<p>
    <?php
    echo $page->fpage();
//直接输出page类里面的fpage()(输出分页信息)
    ?>
</p>
</body>
</html>

复制代码

 

最后的完成图:

4.分页查询 

查询关键字,在本页分页显示!

首先form表单:

 


复制代码

<form action="fenyechaxun.php" method="get">
    //提交给当前页面,用get传递
<p>
    输入地区名称模糊查询:
    <input type="text" name="area"/>
    <input type="submit" value="查查查"/>
</p>
</form>

复制代码

分页查询的条件

 


复制代码

$tj = "1 = 1 ";
    //条件恒变量
    if(!empty($_GET["area"]))
    //判断传过来的是否非空
    {
        $r = $_GET["area"];
        //为了防止双引号有冲突,给变量
        $tj = "areaname like '%{$r}%' ";
        //条件改变
    }

复制代码

 

查询语句也需要改变一下:

 

 $aall = "select count(*) from chinastates WHERE {$tj}";
    //查询所有数据
  $sql = "select * from chinastates WHERE {$tj} ".$page->limit;
    //分页查询,page类调用limit

输出:

 

<p>
    <?php
    echo $page->fpage();
//直接输出page类里面的fpage()(输出分页信息)
    ?>
</p>

 

上图:

 

 

查询的数据也是以分页的形式:

 


 

代码:




   无标题文档


分页查询





   输入地区名称模糊查询:
   
   




   
       
       
       


    include ("DBDA.class.php");
//引用封装类
$db = new db();
//造对象
include "page.class.php";
//引用page工具

$tj = "1 = 1 ";
//条件恒变量
if(!empty($_GET["area"]))
//判断传过来的是否非空
{
$r = $_GET["area"];
//为了防止双引号有冲突,给变量
$tj = "areaname like '%{$r}%' ";
//条件改变
}

$aall = "select count(*) from chinastates WHERE {$tj}";
//查询所有数据
$arr = $db->Query($aall);
   //调用sql,返回一个数组,
   $page = new page($arr[0][0],10);
   //page类对象,每页显示10条
   $sql = "select * from chinastates WHERE {$tj} ".$page->limit;
   //分页查询,page类调用limit
   $ar = $db->Query($sql);
   //执行,并返回一个数组(数据)
   foreach ($ar as $v)
   //遍历
   {
       echo"


       
       
       


       ";
   }

//显示

?>

地区代号地区名称父级代号
{$v[0]}{$v[1]}{$v[2]}


    echo $page->fpage();
//直接输出page类里面的fpage()(输出分页信息)
   ?>



 


 

 

page.class.php分页工具

/**
file: page.class.php
完美分页类 Page
*/
class Page {
private $total; //数据表中总记录数
private $listRows; //每页显示行数
private $limit; //SQL语句使用limit从句,限制获取记录个数,查数据要查哪几条;limit(0,10)跳过第0条,取10条
private $uri; //自动获取url的请求地址
private $pageNum; //总页数
private $page; //当前页
private $config = array(
'head' => "条记录",
               'prev' => "上一页",
               'next' => "下一页",
               'first'=> "首页",
               'last' => "末页"
           );
       //可以修改的信息

//在分页信息中显示内容,可以自己通过set()方法设置
       private $listNum = 10;                     //默认分页列表显示的个数,下面列表要显示多少条,10个

/**
           构造方法,可以设置分页类的属性
           @param    int    $total        计算分页的总记录数
           @param    int    $listRows    可选的,设置每页需要显示的记录数,默认为25条
           @param    mixed    $query    可选的,为向目标页面传递参数,可以是数组,也可以是查询字符串格式
           @param     bool    $ord    可选的,默认值为true, 页面从第一页开始显示,false则为最后一页
        */
       public function __construct($total, $listRows=25, $query="", $ord=true){
           $this->total = $total;
           $this->listRows = $listRows;
           $this->uri = $this->getUri($query);
           //自动获取游览器地址
           $this->pageNum = ceil($this->total / $this->listRows);//(总共多少条数据/每页显示几条)ceil:向上取整
           //取成员变量,$ord=ture首页
           /*以下判断用来设置当前面*/
           //去当前页
           if(!empty($_GET["page"])) {
               $page = $_GET["page"];
           }else{
               if($ord)
                   $page = 1;
               else
                   $page = $this->pageNum;
           }

if($total > 0) {
               if(preg_match('/\D/', $page) ){
                   $this->page = 1;
               }else{
                   $this->page = $page;
               }
           }else{
               $this->page = 0;
           }

           $this->limit = "LIMIT ".$this->setLimit();
           //LIMIT 10,10
       }

/**
           用于设置显示分页的信息,可以进行连贯操作
           @param    string    $param    是成员属性数组config的下标
           @param    string    $value    用于设置config下标对应的元素值
           @return    object            返回本对象自己$this, 用于连惯操作
        */
       function set($param, $value){
           if(array_key_exists($param, $this->config)){
               $this->config[$param] = $value;
           }
           return $this;
       }

       /* 不是直接去调用,通过该方法,可以使用在对象外部直接获取私有成员属性limit和page的值 */
       function __get($args){
           if($args == "limit" || $args == "page")
               return $this->$args;
           else
               return null;
       }

       /**
           按指定的格式输出分页
           @param    int    0-7的数字分别作为参数,用于自定义输出分页结构和调整结构的顺序,默认输出全部结构
           @return    string    分页信息内容
        */
       function fpage(){
           $arr = func_get_args(); //用户参数

$html[0] = " {$this->total} {$this->config["head"]} ";
           $html[1] = " 本页 ".$this->disnum()." 条 ";

           $html[2] = " 本页从 {$this->start()}-{$this->end()} 条 ";

           $html[3] = " {$this->page}/{$this->pageNum}页 ";

           $html[4] = $this->firstprev();

           $html[5] = $this->pageList();

           $html[6] = $this->nextlast();
           $html[7] = $this->goPage();

           $fpage = '

';
           if(count($arr) < 1)
               $arr = array(0, 1,2,3,4,5,6,7);

           for($i = 0; $i < count($arr); $i++)
               $fpage .= $html[$arr[$i]];

           $fpage .= '

';
           return $fpage;
       }

       /* 在对象内部使用的私有方法,*/
       private function setLimit(){
           if($this->page > 0)
               return ($this->page-1)*$this->listRows.", {$this->listRows}";
           else
               return 0;
       }

/* 在对象内部使用的私有方法,用于自动获取访问的当前URL */
       private function getUri($query){    
           $request_uri = $_SERVER["REQUEST_URI"];    
           $url = strstr($request_uri,'?') ? $request_uri :  $request_uri.'?';

           if(is_array($query))
               $url .= http_build_query($query);
           else if($query != "")
               $url .= "&".trim($query, "?&");

           $arr = parse_url($url);

if(isset($arr["query"])){
               parse_str($arr["query"], $arrs);
               unset($arrs["page"]);
               $url = $arr["path"].'?'.http_build_query($arrs);
           }

           if(strstr($url, '?')) {
               if(substr($url, -1)!='?')
                   $url = $url.'&';
           }else{
               $url = $url.'?';
           }

           return $url;
       }

/* 在对象内部使用的私有方法,用于获取当前页开始的记录数 */
       private function start(){
           if($this->total == 0)
               return 0;
           else
               return ($this->page-1) * $this->listRows+1;
       }

/* 在对象内部使用的私有方法,用于获取当前页结束的记录数 */
       private function end(){
           return min($this->page * $this->listRows, $this->total);
       }

/* 在对象内部使用的私有方法,用于获取上一页和首页的操作信息 */
       private function firstprev(){
           if($this->page > 1) {
               $str = " uri}page=1'>{$this->config["first"]} ";
               $str .= "uri}page=".($this->page-1)."'>{$this->config["prev"]} ";        
               return $str;
           }

}

       /* 在对象内部使用的私有方法,用于获取页数列表信息 */
       private function pageList(){
           $linkPage = " ";

           $inum = floor($this->listNum/2);
           /*当前页前面的列表 */
           for($i = $inum; $i >= 1; $i--){
               $page = $this->page-$i;

if($page >= 1)
                   $linkPage .= "uri}page={$page}'>{$page} ";
           }
           /*当前页的信息 */
           if($this->pageNum > 1)
               $linkPage .= "{$this->page} ";

           /*当前页后面的列表 */
           for($i=1; $i <= $inum; $i++){
$page = $this->page+$i;
               if($page <= $this->pageNum)
                   $linkPage .= "uri}page={$page}'>{$page} ";
               else
                   break;
           }
           $linkPage .= '
';
           return $linkPage;
       }

/* 在对象内部使用的私有方法,获取下一页和尾页的操作信息 */
       private function nextlast(){
           if($this->page != $this->pageNum) {
               $str = " uri}page=".($this->page+1)."'>{$this->config["next"]} ";
               $str .= " uri}page=".($this->pageNum)."'>{$this->config["last"]} ";
               return $str;
           }
       }

/* 在对象内部使用的私有方法,用于显示和处理表单跳转页面 */
       private function goPage(){
               if($this->pageNum > 1) {
               return ' ';
           }
       }

/* 在对象内部使用的私有方法,用于获取本页显示的记录条数 */
       private function disnum(){
           if($this->total > 0){
               return $this->end()-$this->start()+1;
           }else{
               return 0;
           }
       }
   }

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