如何避免显示重复值或覆盖重复值在PHP foreach循环表中？

Question

我目前正在研究codeigniter。我想显示一个不重复的值，或者将mysql数据库中的重复值覆盖到php foreach循环的数据表中。

下面是表代码：

<table class="table table-striped responsive-utilities jambo_table" id="myTable"> 
            <thead> 
             <tr class="headings"> 
              <th>Employee No.</th> 
              <th>Username</th> 
              <th>Name</th> 
              <th>Status</th> 
             </tr> 
            </thead> 
            <tbody> 
             <?php 
             foreach($EMPLOYEES as $employee){?> 
             <tr> 
              <td><?php echo $employee->empnum; ?></td> 
              <td><?php echo $employee->username; ?></td> 
              <td><?php echo $employee->name; ?> <?php echo $employee->lastname; ?></td> 
              <td><?php 
              if ($employee->hasClockOut==1){ 
               echo '<a class="label label-danger">Inactive</a>'; 
              }else { 
               echo '<a class="label label-success">Active</a>'; 
              } 
              ?></td> 
             </tr> 
             <?php } ?> 
            </tbody> 
           </table> 

Answer 1

为什么不直接使用 -

$员工= array_unique（$职员）;

Answer 2

试试这个

<table class="table table-striped responsive-utilities jambo_table" id="myTable"> 
    <thead> 
     <tr class="headings"> 
      <th>Employee No.</th> 
      <th>Username</th> 
      <th>Name</th> 
      <th>Status</th> 
     </tr> 
    </thead> 
    <tbody> 
     <?php $emp=''; 
     foreach($EMPLOYEES as $employee){ 
     if($emp!=$employee->username){ # if username contain duplicate values 
     ?> 
     <tr> 
      <td><?php echo $employee->empnum; ?></td> 
      <td><?php echo $employee->username; ?></td> 
      <td><?php echo $employee->name; ?> <?php echo $employee->lastname; ?></td> 
      <td><?php 
      if ($employee->hasClockOut==1){ 
       echo '<a class="label label-danger">Inactive</a>'; 
      }else { 
       echo '<a class="label label-success">Active</a>'; 
      } 
      ?></td> 
     </tr> 
     <?php }$emp=$employee->username;} ?> 
    </tbody> 
</table>