简单的php分页类-php教程

<?php
//-------------------------------------------------------------------------
//使用方法
//测试时还需要一张表至少出现字段 announceID,announceContent
//include db.php
$db_host='localhost';
$db_user='username';
$db_password='password';
$db_name='konwu';
$db_prefix = 'konwu_';
Global $db_prefix;
$conn=@mysql_connect($db_host,$db_user,$db_password);
// utf-8 是默认设置即使没有下面的一行也会默认 UTF-8
// 但是MYSQL数据库的默认是LATIN 拉丁字符
// 最好设置成 GBK UTF-8包含GBK 包含 LATIN
//网页用UTF-8 显示 GBK 没关系但如果 MYSQL写入时用UTF8有乱码风险，因为MYSQL安装时默认LATIN ，最好 SET GBK
mysql_query("SET NAMES 'UTF8'");
mysql_select_db($db_name,$conn) or die ('none DB');
//set page
//@param set
$errorURL = 'http://localhost:8080/htmls/error/index.html';
$result = mysql_query("SELECT * FROM konwu_messageannounce");
$touNUM = mysql_num_rows($result);
$config = array('DB_PREFIX'=>'konwu_','DB'=>'messageannounce','PER_NUM'=>10,'TOU_NUM'=>$touNUM,'ERROR_URL'=>$errorURL,'NUM_PAGE'=>'p');
// use class
$pages = new Pages;
$getPage = $pages->resultNUM($config);//
//------------------------------------
class Pages{
public static $perNUM;//每一页多少条
public static $touNUM;//总共多少条
public static $pageNUM;//总页数
public static $tables;//表名
public static $errorURL;// index URL
public static $numPage;//页面参数的标识 ,
function getInt($config=array()){
$this->tables = $config['DB_PREFIX'].$config['DB'] ? $config['DB_PREFIX'].$config['DB'] : 'konwu_messageannounce';
$this->perNUM = $config['PER_NUM'] ? $config['PER_NUM'] : 10;
$this->touNUM = $config['TOU_NUM'] ? $config['TOU_NUM'] : 50;
$this->pageNUM = ceil($this->touNUM/$this->perNUM);
$this->errorURL = $config['ERROR_URL'] ? $config['ERROR_URL'] : 'http://www.konwu.com';
$this->numPage = $config['NUM_PAGE'] ? $config['NUM_PAGE'] : 'page';
}
function getNUM(){//get num 得到当前页面的值
if(isset($_GET[$this->numPage]) && !emptyempty($_GET[$this->numPage])){
$str = $_GET[$this->numPage];
}else{
$str = 'wrong';
}
return $str;
}
function getError(){
//return $str;
header('location: '.$this->errorURL);
}
//$_GET['pageNUM'] 第几页,必须要是数字整数，必须要 >0 ,必须 <=$pageNUM
function isNUM(){//check num
$str = self::getNUM();
if($str != 'wrong'){
if(ctype_digit($str)){
$numPage = $str;
}else{
self::getError();
}
}else{
self::getError();
}
return $numPage;
}
function getSelect(){
$sql = 'SELECT * FROM '.$this->tables.' ORDER BY announceID DESC';
return $sql;
}
function getSelectResult(){
$sql = self::getSelect();
$result = mysql_query($sql);
return $result;
}
function getStartNUM(){
$nowPage = self::isNUM();
$perNUM = $this->perNUM;
$startNUM = $nowPage-1;
$startNUM = $startNUM*$perNUM;
$startNUM = $startNUM+1;
return $startNUM;
}
function getLastNUM(){
$nowPage = self::isNUM();
$perNUM = $this->perNUM;
$lastNUM = $nowPage*$perNUM;
return $lastNUM;
}
function resultNUM($config){
self::getInt($config);
$result = self::getSelectResult();
$startNUM = self::getStartNUM();
$lastNUM = self::getLastNUM();
$mynum = 1;
$allResult = '';
while($re=mysql_fetch_array($result)){
if($mynum>=$startNUM && $mynum<=$lastNUM){
$announceID = $re['announceID'];
$singleResult = $re['announceContent'];
$singleResult = mb_substr($singleResult,0,50,'utf-8');
$lastPage = self::lastPage();
$nextPage = self::nextPage();
$beginPage = self::beginPage();
$endPage = self::endPage();
$getFivePage = self::getFivePage();
$singleResult = '
<p>'.$singleResult.'…  <a href="moreInfoCon'.$announceID.'.html">详细</a></p>
';
$allResult = $allResult.$singleResult;
}
//--------------------------------------------------------------
$mynum++;
//----------------------------
if($mynum>$lastNUM){
$resultPage = '<div class="pagination">
'.$beginPage.'
'.$lastPage.'
'.$getFivePage.'
'.$nextPage.'
'.$endPage.'
</div>';
$allResult = $allResult.$resultPage;
return $allResult;
}
//-----------------------------
}
$resultPage = '<div class="pagination">
'.$beginPage.'
'.$lastPage.'
'.$getFivePage.'
'.$nextPage.'
'.$endPage.'
</div>';
$allResult = $allResult.'<br><br>'.$resultPage;
return $allResult;
}
//next page下一页
function nextPage(){
$nowPage = self::isNUM();
$pageNUM = $this->pageNUM;
if($nowPage>=$pageNUM){
$nextPage = '';
}else{
$nextPage = $nowPage+1;
$nextPage = '<a href="moreInfo.html?'.$this->numPage.'='.$nextPage.'" title="Next Page">下一页 »</a>';
}
return $nextPage;//得到参数值
}
//lastPage 上一页
function lastPage(){
$nowPage = self::isNUM();
if($nowPage>=2){
$lastPage = $nowPage-1;
$lastPage = '<a href="moreInfo.html?'.$this->numPage.'='.$lastPage.'" title="Previous Page">« 上一页</a>';
}else{
$lastPage = '';
}
return $lastPage;
}
//第一页，最后一页，当前页左右各两页共五页
function endPage(){
$pageNUM = $this->pageNUM;
$endPage = '<a href="moreInfo.html?'.$this->numPage.'='.$pageNUM.'" title="Last Page">最后一页 »</a>';
return $endPage;
}
function beginPage(){
$beginPage = '<a href="moreInfo.html?'.$this->numPage.'=1" title="First Page">« 第一页</a>';
return $beginPage;
}
function getFivePage(){
$nowPage = self::isNUM();//当前页面
$pageNUM = $this->pageNUM;//总页数
if($pageNUM<=5){
$NUM = 1;
$getNUM = '';
while($pageNUM>=$NUM){
$nums = '<a href="moreInfo.html?'.$this->numPage.'='.$NUM.'" class="number" title="'.$NUM.'">'.$NUM.'</a>';
$getNUM = $getNUM.$nums;
$NUM++;
}
$getFivePage = $getNUM;
return $getFivePage;
}else{//>5
if($nowPage == 1){
$getNUM = '
<a href="moreInfo.html?'.$this->numPage.'=1" class="number current" title="1">1</a>
<a href="moreInfo.html?'.$this->numPage.'=2" class="number" title="2">2</a>
<a href="moreInfo.html?'.$this->numPage.'=3" class="number" title="3">3</a>
<a href="moreInfo.html?'.$this->numPage.'=4" class="number" title="4">4</a>
<a href="moreInfo.html?'.$this->numPage.'=5" class="number" title="5">5</a>
';
}elseif($nowPage == 2){
$getNUM = '
<a href="moreInfo.html?'.$this->numPage.'=1" class="number" title="1">1</a>
<a href="moreInfo.html?'.$this->numPage.'=2" class="number current" title="2">2</a>
<a href="moreInfo.html?'.$this->numPage.'=3" class="number" title="3">3</a>
<a href="moreInfo.html?'.$this->numPage.'=4" class="number" title="4">4</a>
<a href="moreInfo.html?'.$this->numPage.'=5" class="number" title="5">5</a>
';
}elseif($nowPage == ($pageNUM-1)){//-2位置
$getNUM = '
<a href="moreInfo.html?'.$this->numPage.'='.($pageNUM-4).'" class="number" title="'.($pageNUM-4).'">'.($pageNUM-4).'</a>
<a href="moreInfo.html?'.$this->numPage.'='.($pageNUM-3).'" class="number" title="'.($pageNUM-3).'">'.($pageNUM-3).'</a>
<a href="moreInfo.html?'.$this->numPage.'='.($pageNUM-2).'" class="number" title="'.($pageNUM-2).'">'.($pageNUM-2).'</a>
<a href="moreInfo.html?'.$this->numPage.'='.($pageNUM-1).'" class="number current" title="'.($pageNUM-1).'">'.($pageNUM-1).'</a>
<a href="moreInfo.html?'.$this->numPage.'='.$pageNUM.'" class="number" title="'.$pageNUM.'">'.$pageNUM.'</a>
';
}elseif($nowPage == $pageNUM){//-1位置
$getNUM = '
<a href="moreInfo.html?'.$this->numPage.'='.($nowPage-4).'" class="number" title="'.($nowPage-4).'">'.($nowPage-4).'</a>
<a href="moreInfo.html?'.$this->numPage.'='.($nowPage-3).'" class="number" title="'.($nowPage-3).'">'.($nowPage-3).'</a>
<a href="moreInfo.html?'.$this->numPage.'='.($nowPage-2).'" class="number" title="'.($nowPage-2).'">'.($nowPage-2).'</a>
<a href="moreInfo.html?'.$this->numPage.'='.($nowPage-1).'" class="number" title="'.($nowPage-1).'">'.($nowPage-1).'</a>
<a href="moreInfo.html?'.$this->numPage.'='.$nowPage.'" class="number current" title="'.$nowPage.'">'.$nowPage.'</a>
';
}elseif(2<$nowPage && $nowPage<($pageNUM-1)){//2位置和-2位置之间
$getNUM = '
<a href="moreInfo.html?'.$this->numPage.'='.($nowPage-2).'" class="number" title="'.($nowPage-2).'">'.($nowPage-2).'</a>
<a href="moreInfo.html?'.$this->numPage.'='.($nowPage-1).'" class="number" title="'.($nowPage-1).'">'.($nowPage-1).'</a>
<a href="moreInfo.html?'.$this->numPage.'='.$nowPage.'" class="number current" title="'.$nowPage.'">'.$nowPage.'</a>
<a href="moreInfo.html?'.$this->numPage.'='.($nowPage+1).'" class="number" title="'.($nowPage+1).'">'.($nowPage+1).'</a>
<a href="moreInfo.html?'.$this->numPage.'='.($nowPage+2).'" class="number" title="'.($nowPage+2).'">'.($nowPage+2).'</a>
';
}else{
self::getError();
}
}
$getFivePage = $getNUM;
return $getFivePage;
}
//----------------------------------
}
?>

简单的php分页类

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