Home > Backend Development > PHP Tutorial > 实现“上一页”和“下一页"按钮

实现“上一页”和“下一页"按钮

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Release: 2016-06-01 14:29:24
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//本例子摘自phpbuilder.com 
//稍加翻译 
// 

$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 "上一页   \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 $newoffset=$limit*($i-1); 
print "$i   \n"; 
} 

// check to see if last page 
if (!(($offset/$limit)==$pages) && $pages!=1) { 
// not last page so give NEXT link 
$newoffset=$offset+$limit; 
print "下一页

\n"; 
} 

?> 


source:php.cn
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