php中单个数据库字段多列显示
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 $rer=mysql_query(“select EI_EmployeeId ,EI_EmployeeName from employeeinfo order by EI_EmployeeId asc limit 0,10″); while($inf=mysql_fetch_array($rer)){ ?> <td> <input type=”checkbox” name=”menuemployname” id=”menuemployname” value=” <?php echo $inf['EI_EmployeeName']?>”/> <?php echo $inf['EI_EmployeeName']?> </td> <?php }?> </tr>
之后循环代码:
<?php $rer=mysql_query(“select EI_EmployeeId,EI_EmployeeName from employeeinfo order by EI_EmployeeId asc”); $num=mysql_num_rows($rer); $i=0;$j=10; $count=ceil($num/$j); for($k=0;$k<$count;$k++){ $i=$i+$j; ?> <tr> <?php $rer=mysql_query(“select EI_EmployeeId, EI_EmployeeName from employeeinfo order by EI_EmployeeId asc limit $i,$j”); while($inf=mysql_fetch_array($rer)){ ?> <td> <input type=”checkbox” name=”menuemployname” id=”menuemployname” value=” <?php echo $inf['EI_EmployeeName']?>”/> <?php echo $inf['EI_EmployeeName']?> </td> <?php }?> </tr> <?php }?>
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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