实现“上一页”和“下一页"按钮

<?php;;//本例子摘自phpbuilder.com;;//稍加翻译;;//<sprming@netease.com>;;$limit=20; // 每页显示的行数;;$numresults=mysql_query("select * from TABLE where YOUR CONDITIONAL HERE order by WHATEVER");//换成你所需要的sql语句;;$numrows=mysql_num_rows($numresults);;;// next determine if offset has been passed to script, if not use 0;;if (empty($offset)) {;;$offset=1;;;};;// 得到查询结果;;$result=mysql_query("select id,name,phone ".;;"from TABLE where YOUR CONDITIONAL HERE ".;;"order by WHATEVER limit $offset,$limit");;;// 现在显示查询结果;;while ($data=mysql_fetch_array($result)) {;;// 在这里插入您要显示的结果以及样式;;};;// 显示按钮;;if ($offset！=1) { // bypass PREV link if offset is 1;;$prevoffset=$offset-20;;;print "<a href="$PHP_SELF?offset=$prevoffset">上一页</a> &nbsp; n";;;};;// 计算页面数;;$pages=intval($numrows/$limit);;;// $pages now contains int of pages needed unless there is a remainder from division;;if ($numrows%$limit) {;;// has remainder so add one page;;$pages++;;;};;for ($i=1;$i<=$pages;$i++) { // 显示页数;;$newoffset=$limit*($i-1);;;print "<a href="$PHP_SELF?offset=$newoffset">$i</a> &nbsp; n";;;};;// check to see if last page;;if (!(($offset/$limit)==$pages) && $pages!=1) {;;// not last page so give NEXT link;;$newoffset=$offset+$limit;;;print "<a href="$PHP_SELF?offset=$newoffset">下一页</a><p>n";;;};;?>;;