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php中单个数据库字段多列显示
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php中单个数据库字段多列显示

Jun 13, 2016 am 09:27 AM
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php中单个数据库字段多列显示

 这篇文章主要介绍了php中单个数据库字段多列显示、分行分列显示技巧,也可称为单字段分页、横向输出,需要的朋友可以参考下

 

 

 

今天在做项目时,遇到个问题就是把从数据库读出来的同一字段分行分列显示,就是每行显示12列,根据总记录数控制循环行数。如果是多字段很好实现,一个循环搞定,如果是一个字段循环那么就比较麻烦了,需要同时用到多个循环还有递增变量,网上也有很多Phper遇到相似的问题,今天小编把自己的解决方案分享大家。

对于同一字段循环多行和控制列显示个数,实现原理就是先用Limit限制读出第一次循环,然后拿第一次循环读出的记录数加上要每行显示的列数。下面直接附上代码:

第一次循环代码:

<tr>
<?php
$rer=mysql_query(&ldquo;select EI_EmployeeId
,EI_EmployeeName from employeeinfo order by EI_EmployeeId asc limit 0,10&Prime;);
while($inf=mysql_fetch_array($rer)){
?> 
<td>
<input type=&rdquo;checkbox&rdquo; name=&rdquo;menuemployname&rdquo; id=&rdquo;menuemployname&rdquo; value=&rdquo;
<?php echo $inf['EI_EmployeeName']?>&rdquo;/>
<?php echo $inf['EI_EmployeeName']?>
</td>
<?php }?>
</tr>
Copy after login

之后循环代码:

<?php
$rer=mysql_query(&ldquo;select EI_EmployeeId,EI_EmployeeName from employeeinfo order by EI_EmployeeId asc&rdquo;);
$num=mysql_num_rows($rer);
$i=0;$j=10;
$count=ceil($num/$j);
for($k=0;$k<$count;$k++){
$i=$i+$j;
?> 
<tr>
<?php
$rer=mysql_query(&ldquo;select EI_EmployeeId,
EI_EmployeeName from employeeinfo order by EI_EmployeeId asc limit $i,$j&rdquo;);
while($inf=mysql_fetch_array($rer)){
?> 
<td>
<input type=&rdquo;checkbox&rdquo; name=&rdquo;menuemployname&rdquo; id=&rdquo;menuemployname&rdquo; value=&rdquo;
<?php echo $inf['EI_EmployeeName']?>&rdquo;/>
<?php echo $inf['EI_EmployeeName']?>
</td>
<?php }?>
</tr>
<?php }?>
Copy after login

当然还有更直接的方法,就是多次循环第一次循环,只需要改动Limit的第一个参数即可。希望对于初学者phper有所帮助。

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