用PHP＋MYSQL 实现论坛里的分级＋分页显示_PHP教程

/*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 "

";
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 $myrow_child[4] . " ";
  //如果回复贴数不为空，则表示有儿子贴，继续显示儿子贴
  if($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];

http://www.bkjia.com/PHPjc/631062.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/631062.htmlTechArticle? /*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(2...