一個odbc連mssql分頁的類

2019-11-18 20:20:17

字體：大中小

來源：轉載

供稿：網友

<?
class Pages{
 var $cn; //連接數據庫游標
 var $d; //連接數據表的游標
 var $result; //結果
 var $dsn; //dsn源
 var $user; //用戶名
 var $pass; //密碼

 var $total; //記錄總數
 var $pages; //總頁數
 var $onepage; //每頁條數
 var $page; //當前頁
 var $fre; //上一頁
 var $net; //下一頁
 var $i; //控制每頁顯示

 function getConnect($dsn,$user,$pass){
 $this->cn=@odbc_connect($dsn,$user,$pass);
 if(!$this->cn){
 $error="連接數據庫出錯";
 $this->getMess($error);
 }
 }

 function getDo($sql){//從表中查詢數據
 $this->d=@odbc_do($this->cn,$sql);
 if(!$this->d){
 $error="查詢時發生了小錯誤......";
 $this->getMess($error);
 }
 return $this->d;
 }

 function getTotal($sql){
 $this->sql=$sql;
 $dT=$this->getDo($this->sql); //求總數的游標
 $this->total=odbc_result($dT,'total');//這里為何不能$this->d呢？
 return $this->total;
 }

 function getList($sql,$onepage,$page){
 $this->s=$sql;
 $this->onepage=$onepage;
 $this->page=$page;
 $this->dList=$this->getDo($this->s); //連接表的游標
 $this->pages=ceil($this->total/$this->onepage);
 if($this->pages==0)
 $this->pages++; //不能取到第0頁
 if(!isset($this->page))
 $this->page=1;
 $this->fre = $this->page-1; //將顯示的頁數
 $this->nxt = $this->page+1;
 $this->nums=($this->page-1)*$this->onepage;
 //if($this->nums!=0){
 // for($this->i=0;$this->i<$pg->getNums();odbc_fetch_row($this->dd),$this->i++);//同上
 //}
 //$this->i=0;//為何這部分不能封裝？
 return $this->dList;
 }

 function getFanye(){
 $str="";
 if($this->page!=1)
 $str.="<a href=".$php_SELF."?page=1> 首頁 </a><a href=".$PHP_SELF."?page=".$this->fre."> 前頁 </a>";
 else
 $str.="首頁前頁";
 if($this->page<$this->pages)
 $str.="<a href=".$PHP_SELF."?page=".$this->nxt."> 后頁 </a>";
 else
 $str.=" 后頁 ";
 if($this->page!=$this->pages)
 $str.="<a href=".$PHP_SELF."?page=".$this->pages."> 尾頁 </a>";
 else
 $str.=" 尾頁 ";

 $str.="共".$this->pages."頁";
 $str.="您正瀏覽第".$this->page."頁";
 return $str;
 }

 function getNums(){
 return $this->nums;
 }

 function getOnepage(){//每頁實際條數
 return $this->onepage;
 }

 function getI(){
 return $this->i;
 }

 function getPage(){
 return $this->page;
 }

 function getMess($error){//定制消息
 echo"<center>$error</center>";
 exit;
 }
}

$pg=new Pages();
$pg->getConnect("lei","sa","star");
$pg->getTotal("select count(*) as total from xs"); //連學生表求總數
$pg->getList("select xs_name from xs order by xs_id",8,$page);
if($pg->getNums()!=0){
 for($i=0;$i<$pg->getNums();odbc_fetch_row($pg->dList),$i++);//同上
}
$i=0;
while(odbc_fetch_row($pg->dList)){
 $name=odbc_result($pg->dList,"xs_name");
 echo $name." ";
 if($i==$pg->getOnepage()){//跳出循環
 break;
 }
 $i++;
}
echo$pg->getFanye();
?>

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