PHP paging small code_PHP tutorial

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Release: 2016-07-13 17:43:55
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php make page list




 
   
   
 
/*
* Created on 2010-4-17
*
* Order by Kove Wong
*/
$link=MySQL_connect(localhost,root,haoxiazai1987);
mysql_select_db(pagelist);
mysql_query(set names gbk);

$Page_size=10;

$result=mysql_query(select * from v_char);
$count = mysql_num_rows($result);
$page_count = ceil($count/$Page_size);


$init=1;
$page_len=7;
$max_p=$page_count;
$pages=$page_count;

//判断当前页码
if(empty($_GET[page])||$_GET[page]<0){
$page=1;
}else {
$page=$_GET[page];
}

$offset=$Page_size*($page-1);
$sql="select * from v_char limit $offset,$Page_size";
$result=mysql_query($sql,$link);
while ($row=mysql_fetch_array($result)) {
?>
 


   
   
 

}

$page_len = ($page_len%2)?$page_len:$pagelen+1;//页码个数
$pageoffset = ($page_len-1)/2;//页码个数左右偏移量

$key=

;
 $key.="$page/$pages ";   //第几页,共几页
 if($page!=1){
 $key.="第一页 ";    //第一页
 $key.="上一页"; //上一页
}else {
 $key.="第一页 ";//第一页
 $key.="上一页"; //上一页
}

 if($pages>$page_len){
 //如果当前页小于等于左偏移
 if($page<=$pageoffset){
$init=1;
$max_p = $page_len;
}else{//如果当前页大于左偏移
//如果当前页码右偏移超出最大分页数
if($page+$pageoffset>=$pages+1){
 $init = $pages-$page_len+1;
 }else{
 //左右偏移都存在时的计算
 $init = $page-$pageoffset;
 $max_p = $page+$pageoffset;
 }
 }
  }
  for($i=$init;$i<=$max_p;$i++){
 if($i==$page){
 $key.= .$i.;
 } else {
 $key.=" ".$i."";
 }
  }

  if($page!=$pages){
 $key.=" 下一页 ";//下一页
 $key.="最后一页"; //最后一页
 }else {
 $key.="下一页 ";//下一页
 $key.="最后一页"; //最后一页
 }
 $key.=

;
?>
 
   
 
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