【 tulaoshi.com - Web开发 】
?php
/*
需求,建立一个test数据库,在里边建一个test表,里面就
只要id字段,输入一下数据就可以啦。。
由于水平有限,难免出错。。
*/
$conn = mysql_connect("localhost","root","");
$maxnum = 2; //每页显示记录条数
mysql_select_db("test", $conn);
$query1 = "SELECT COUNT(*) AS totalrows FROM test ";
$result1 = mysql_query($query1, $conn) or die(mysql_error());
$row1 = mysql_fetch_assoc($result1);
$totalRows1 = $row1['totalrows']; //数据集数据总条数
$totalpages = ceil($totalRows1/$maxnum);//计算可分页总数,ceil()为上舍函数
if(!isset($_GET['page']) || !intval($_GET['page']) || $_GET['page'] $totalpages) $page = 1; //对3种出错进行默认处理
//在url参数page不存在时,page不为10进制数时,page大于可分页数时,默认为1
else $page = $_GET['page'];
$startnum = ($page - 1)*$maxnum; //从数据集第$startnum条开始取,注意数据集是从0开始的
$query = "SELECT * FROM test LIMIT $startnum,$maxnum";//选择出符合要求的数据 从$startnum条数据开始,选出$maxnum行
$result = mysql_query($query, $conn) or die(mysql_error());
$row = mysql_fetch_assoc($result);
?
html
head
meta http-equiv="Content-Type" content="text/html; charset=gb2312"
title分页示例/title
script language="JavaScript" type="text/JavaScript"
!--
function MM_jumpMenu(targ,selObj,restore){ //v3.0
eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
if (restore) selObj.selectedIndex=0;
}
//--
/script
style type="text/css"
a{text-decoration:none;}
a:hover{text-decoration:underline}
table{font-size:12px;}
.tb{background-color:#73BB95}
.tr{background-color:#FFFFFF}
/style
/head
body
table width="30%" border="0" align="center" cellpadding="0" cellspacing="1" class="tb"
tr
td height="24"div align="left"分页示例/div/td
/tr
?php if($totalRows1) {//记录集不为空显示
do {
?
tr class="tr"
td height="24"div align="center"?php echo $row['id'];?/div/td
/tr
?php }while($row = mysql_fetch_assoc($result));?
/table
table width="95%" border="0" align="center" cellpadding="0" cellspacing="0"
trform name="form1"
td height="27"div align="center"
?php
echo "共计font color="#ff0000"$totalRows1/font条记录";
echo "font color="#ff0000"".$page."/font"."/".$totalpages."页 ";
//实现 1 2 3 4 5 分页链接
$pre = $page - 1;//上一页
$next = $page + 1;//下一页
$maxpages = 4;//处理分页时 1 2 3 4 显示4页
$pagepre = 1;//如果当前页面是4,还要显示前$pagepre页,如 3 /4/ 5 6 把第3页显示出来
if($page != 1) { echo "a href='".$_SERVER['PHP_SELF']."'/a ";
echo "a href='".$_SERVER['PHP_SELF'].'?page='.$pre."'/a ";}
if($maxpages=$totalpages) //如果总记录不足以显示4页
{$pgstart = 1;$pgend = $totalpages;}//就不所以的页面打印处理
elseif(($page-$pagepre-1+$maxpages)$totalpages)//就好像总页数是6,当前是5,则要把之前的3 4 显示出来,而不仅仅是4
{$pgstart = $totalpages - $maxpages + 1;$pgend = $totalpages;}
else{
$pgstart=(($page=$pagepre)?1:($page-$pagepre));//当前页面是1时,只会是1 2 3 4 而不会是 0 1 2 3
$pgend=(($pgstart==1)?$maxpages:($pgstart+$maxpages-1));
}
for($pg=$pgstart;$pg=$pgend;$pg++){ //跳转菜单
if($pg == $page) echo "a href="".$_SERVER['PHP_SELF']."?page=$pg"font color="#ff0000"$pg/font/a ";
else echo "a href="".$_SERVER['PHP_SELF']."?page=$pg"$pg/a ";
}
if($page != $totalpages)
{echo "a href='".$_SERVER['PHP_SELF'].'?page='.$next."'/a ";
echo "a href='".$_SERVER['PHP_SELF'].'?page='.$totalpages."'/a ";}
?
select name="menu1" onChange="MM_jumpMenu('parent',this,0)"
option value=""选择/option
?php for($pg1=1;$pg1=$totalpages;$pg1++) {
echo "option value="".$_SERVER['PHP_SELF']."?page=$pg1"".$pg1."/option";
}?
/select
/td/form
/tr
/table
?php } else {//记录集为空时显示?
tr class="tr"
td height="24"div align="center"没有任何记录/div/td
/tr
/table
?php }?
/body
/html
?php
mysql_free_result($result1);
mysql_free_result($result);
?