PHP翻页跳转功能实现方法

mysql_query("select  from table order by id desc");

mysql_query("select  from table order by id desc limit $start,$limit");

<? 
//设置当前页显示的数量(这个数量可任意设置) 
$limit=20; 
//初始化数据库搜索起始记录 
if (!emptyempty($start)) $start=0; 
mysql_connect("localhost","",""); 
mysql_select_db(database); 
//设置数据库记录总数 
$result=mysql_query("select  from table"); 
$num_max=mysql_numrows($result); 
$result=mysql_query("select  from table order by id desc limit $start,$limit); 
$num=mysql_numrows($result); 
echo "<table><tr><td>翻页功能</td></tr>"; 
if (!emptyempty($num)) { 
for ($i=0;$i<$num;$i++) { 
$val=mysql_result($result,$i,"val"); 
$val1=mysql_result($result,$i,"val1"); 
echo "<tr><td>$val</td><td>$val1</td></tr>"; 
} 
} 
echo "<tr><td>"; 
//设置向前翻页的跳转 
$prve=$start-$limit; 
if ($prve>=0) { 
echo "<a href=page.php?start=$prve>prve</a>"; 
} 
//设置向后翻页的跳转 
$next=$start+$limit; 
if ($next<$num_max) { 
echo "<a href=page.php?start=$next>next</a>"; 
} 
echo "</td></tr></table>"; 
?>

<? 
... 
$result=mysql_query("select  from table"); 
$num=mysql_numrows($result); 
for ($page=0;$page<($num/$limit);$page++) { 
echo $page; 

if ($page>0 && ($page%20)==0) { 
break; //退出循环 
} 
} 
?>

<? 
$limit=25; 
if (!emptyempty($start)) $start=0; 
if (!emptyempty($s)) $s=0; 
mysql_connect("localhost","",""); 
mysql_select_db(database); 
//统计数据库记录总数 
$result=mysql_query("select  from table"); 
$num=mysql_numrows($result); 
$result=mysql_query("select  from table order by id limit $start,$limit"); 
$numb=mysql_numrows($result); 
echo "<table>"; 
if (!emptyempty($numb)) { 
for($i=0;$i<$numb;$i++) { 
$val=mysql_result($result,$i,"val"); 
$val1=mysql_result($result,$i,"val1"); 
echo "<tr><td>$val</td><td>$val1</td></tr>"; 
} 
} 
echo "</table>"; 
//数字循环翻页的控制 
echo "<table>"; 
echo "<tr><td>页:</td>"; 
//前翻控制 
if ($s>20) { 
if ($s==21) { 
$st=$s-21; 
} else { 
$st=$s-20; 
} 
$pstart=$st$limit; 
echo "<td><a href=page.php?"; 
echo "start=$pstart&s=$st>prve</a></td>"; 
} 
echo "<td> >></td>"; 
//设置当前页对应页数无链接功能 
$star=$start; 
//注意循环的初始附值,仔细想想为什么不是 0 
for ($page=$s;$page<($num/$limit);$page++) { 
$start=$page$limit; 
echo "<td>"; 
if($page!=$star/$limit) { 
echo "<a href=page.php?"; 
echo "start=$start&s=$s>"; 
} 
echo $page; 
if($page!=$star/$limit) { 
echo "</a>"; 
} 
echo "</td>"; 
//控制数字页面限制显示功能,控制只显示 20 页 
if ($page>0 && ($page%20)==0) { 
if ($s==0) { 
$s=$s+21; 
} else { 
$s=$s+20; 
} 
$start=$start+$limit; 
if ((($num/$limit)-1)>$page) { 
echo "<td> <<</td><td><a href'page.php?"; 
echo "start=$start&s=$s>next</a></td>"; 
} 
//注意跳出循环的控制 
break; 
} 
} 
echo "</tr></table>"; 
?>