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HomeDatabaseMysql Tutorial用PHP+MYSQL 实现论坛里的分级+分页显示_MySQL


/*存放贴子的表结构------------------------------------------------------

create table bbsrow(
bbsrow_id int(6) not null auto_increment, //贴子ID号
bbsrow_auth varchar(20) not null, //贴子作者
bbsrow_parentid int(6), //贴子的父亲贴子ID号,如为首发贴则为空
bbsrow_title varchar(200) not null, //贴子标题
bbsrow_returncount int(3), //贴子的回复贴数,如果没有回贴则为空
primary key (bbsrow_id)
);
-----------------------------------------------------------------------------*/


//显示儿子贴的递归函数--------------------------------------------------
function showchildren($parent_id){
global $connect_id;
$query="select * from bbsrow where bbsrow_parentid='" . $parent_id . "'";
$result_top=mysql_query($query,$connect_id);
echo "
    \n";
    while($myrow_child=mysql_fetch_row($result_top)){
    echo "
  • ";
    echo $myrow_child[0];
    echo $myrow_child[1];
    echo $myrow_child[2];
    echo $myrow_child[3];
    echo $myrow_child[4] . "\n";
    //如果回复贴数不为空,则表示有儿子贴,继续显示儿子贴
    if($myrow_child[4]!=''){
    showchildren($myrow_child[0]);
    }
    }
    echo "
";
}
//----------------------------------------------------------------------

//连接数据库并将所有首发贴放到$mainrow数组里----------------------------

$connect_id=mysql_connect("localhost","test","test") or die("无法连接数据库");
mysql_select_db("bbs") or die("无法选择数据库");
$query="select * from bbsrow where bbsrow_parentid=''";
$result=mysql_query($query,$connect_id);

$i=0;
while($myrow=mysql_fetch_row($result)) {
$mainrow[$i][0]=$myrow[0];
$mainrow[$i][1]=$myrow[1];
$mainrow[$i][2]=$myrow[2];
$mainrow[$i][3]=$myrow[3];
$mainrow[$i][4]=$myrow[4];
$i++;
}
mysql_free_result($result);
//----------------------------------------------------------------------

//开始构建分页显示------------------------------------------------------

if($currentpage!=""){
$page=$currentpage;
}
else{
$page=0;
}

$pagesize=10;//每页显示的首发贴数!
$start=$page*$pagesize;
$end=$start+$pagesize;
if($end>$i) $end=$i;
$totalpage=$i/$pagesize;


$info=" 共有" . $i . "条纪录,分" . ceil($totalpage) . "页,当前为第" . ($page+1) . "/" . ceil($totalpage) . "页
\n";
echo $info;

if($page>0) $pagestr="上一页";
$pagestr=$pagestr . " [第 ";

for($i=0;$iif($i!=$page){
$pagestr=$pagestr . " " . ($i+1) . " ";
}
else{
$pagestr=$pagestr . " " . ($i+1) . " ";
}
}

$pagestr=$pagestr . "页]";

if($page下一页

\n";

echo $pagestr;
//----------------------------------------------------------------------

//开始分级显示----------------------------------------------------------

echo "

    \n";
    for($i=$start;$iecho "
  • \n";
    echo $mainrow[$i][0];
    echo $mainrow[$i][1];
    echo $mainrow[$i][2];
    echo $mainrow[$i][3];
    echo $mainrow[$i][4] . "\n";
    //如果回复贴数不为空,则表示有儿子贴,继续显示儿子贴
    if($mainrow[$i][4]!=''){
    showchildren($mainrow[$i][0]);
    }
    }
    echo "
\n";
//----------------------------------------------------------------------?>

摘自:http://www.chinaasp.com/columns/php/article1367.asp
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