<?php
function pagetorecord($page,$pagecounts){
$result=($page-1)*$pagecounts;
return $result;
}
function pagech($page,$j){
if($j==1){
$p=$page+1;}
else{
$p=$page-1;}
return $p;
}
$pagecounts=20;
if($startpage){
$startpage=$startpage;
}
else{
$startpage=1;
}
$sqltr=select * from main order by sm limit .pagetorecord($startpage,$pagecounts).,.$pagecounts;
$connect=mysql_connect(localhost,http,something);
$select=mysql_select_db('book',$connect);
$query=mysql_query('select count(*) as total from main',$connect);
$totalrecord=mysql_result($query,0,total);
$query=mysql_query($sqltr,$connect);
//-------------------------------
echo <table border=1 cellpadding=0 cellspacing=0>;
echo<tr><td>序号</td><td>标准书号</td><td>书名</td><td>出版社</td><td>定价</td></tr>;
$i=1;
while($array=mysql_fetch_array($query)){
printf(<tr><td>%d</td><td>%s</td><td>%s</td><td>%s</td><td>%f</td></tr>,
$i,$array[bzsh],$array[sm],$array[cbs],$array[dj]);
$i++;
}
echo</table>;
echo<hr>;
mysql_close($connect);
if(0==$totalrecord%$pagecounts){
$totalpage=floor($totalrecord/$pagecounts);}
else{
$totalpage=floor($totalrecord/$pagecounts)+1;
}
//echo $sqltr;
if($startpage==1){
if($totalpage>1){
echo首页 ;
echo前页 ;
echo <a href=../../.basename($php_self).?startpage=.pagech($startpage,1).>下页 </a>;
echo <a href=../../.basename($php_self).?startpage=.$totalpage.>尾页</a> 共.$totalpage.页 第.$startpage.页;
}
else{
echo首页 ;
echo前页 ;
echo下页 ;
echo尾页 ;
}
}
elseif($startpage==$totalpage){
echo <a href=../../.basename($php_self).?startpage=1>首页 </a>;
echo <a href=../../.basename($php_self).?startpage=.pagech($startpage,-1).>前页 </a>;
echo下页 ;
echo尾页 共.$totalpage.页 第.$startpage.页;
}
else{
echo <a href=../../.basename($php_self).?startpage=1>首页 </a>;
echo <a href=../../.basename($php_self).?startpage=.pagech($startpage,-1).>前页 </a>;
echo <a href=../../.basename($php_self).?startpage=.pagech($startpage,1).>下页 </a>;
echo <a href=../../.basename($php_self).?startpage=.$totalpage.>尾页</a> 共.$totalpage.页 第.$startpage.页;
}
?>