php与mysql完成的分页类（自家用）

这个分页是上次发的java分页的基础，我是在php的基础上，完成的其他的分页，思想基本一样,把此函数改造后，才能适应真正的使用，样式的控制在do-while这个函数上


class page

{

var $user="root";

var $passwd="";

var $host="127.0.0.1";

var $port="3306";

var $dbname="soohuo";

//var $server=$this->host.":".$this->port;

var $page_num=30;//每页显示的条数

var $con;//库连接成功句柄

var $result;//查询成功句柄

var $page_sum;//总共的页数

function page($sql,$url)

{

$this->db_connect();

$this->get_page_sum($sql);

if(!isset($_GET["page"])||$_GET["page"]==0)

$page=1;

else

$page=$_GET["page"];

$url=$url."?page=";

$foot="";

if($page>1)

$foot=$foot."上一页 ";

$foot=$foot."当前是第$page 页";

if($this->page_sum>1&&$page<$this->page_sum)

$foot=$foot." 下一页";

if($this->page_sum>1)

{

$foot=$foot." 跳到第 /n";

for($i=1;$i<=$this->page_sum;$i++)

{

if($i==$page)

$foot.="$i/n";

else

$foot.="$i/n";

}

$foot.=" 页";

}

$foot.="";

$start=($page-1)*$this->page_num;

$end=$this->page_num;

$sql1=$sql." limit $start,$end";

$this->db_query($sql1);

$this->get_page_head($sql);//page head

$this->db_while();//page body

echo $foot;//page end

}

function db_while()

{

$result=$this->result;

echo "ID号标题错误原因";

while($row=mysql_fetch_array($result))

{

if($row["up_oracle"]==2)

{

$error="存在重复";

}

if($row["up_oracle"]==3)

{

$error="插入没成功";

}

echo "".$row["data_id"]."".$row
["title"]."".$error."";

}

mysql_free_result($result);

}

function get_page_sum($sql)

{

$row_num=mysql_num_rows(mysql_query($sql));

$page_sum=ceil($row_num/$this->page_num);

$this->page_sum=$page_sum;

}

function get_page_head($sql)

{

$row_num=mysql_num_rows(mysql_query($sql));

if($row_num==0)

{

$head="没有您要查找的记录";
echo "

$head

";

exit();

}

$page_sum=ceil($row_num/$this->page_num);

$head="共有记录 $row_num 条 共 $page_sum 页";

echo "";
$this->page_sum=$page_sum;

}

function db_connect()

{

$server=$this->host.":".$this->port;

$con=mysql_connect($server,$this->user,$this->passwd);

if(!$con)

{

echo "database is connect error!".mysql_error()."
";
exit();

}

$select=mysql_select_db($this->dbname);

if(!$select)

{

echo "select is not database error!".mysql_error()."
";
exit();

}

$this->con=$con;

}

function db_query($sql)

{

if($sql=="")

{

echo "query is not null
";

exit();

}

$result=mysql_query($sql,$this->con);

if(!$result)

{

echo "/$sql error
";

echo "/$sql is $sql
";

exit();

}

$this->result=$result;

}

}

?>

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$head