phpmysql分页代码与分页原理详解-PHP源码

";
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 "

$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
";
echo $info;

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

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

$pagestr=$pagestr . "页]";

if($page<$totalpage-1) $pagestr=$pagestr . "下一页

";

echo $pagestr;

";
for($i=$start;$i<$end;$i++){
echo "
• ";
  echo $mainrow[$i][0];
  echo $mainrow[$i][1];
  echo $mainrow[$i][2];
  echo $mainrow[$i][3];
  echo $mainrow[$i][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($mainrow[$i][4]!=''){
  showchildren($mainrow[$i][0]);
  }
  }
  echo "