基於coloumns值的打印值-MYSQL，PHP

Question

如果C2列值爲'03'我想打印爲'K9'，如果它的值是'O4'那麼我想打印它爲'k10'否則任何其他值，它應該顯示它。

我怎麼能做到這一點..

 //my code// 
select a.capacity,a.comment, b.c1,b.c2,b.c3 from table1 a inner join table2 b on a.capacity=b.capacity WHERE a.capacity= $name 

     $rs = mysql_query($sql) or die('Database Error: ' . mysql_error()); 


     $num = mysql_num_rows($rs); 

     if($num >= 1){ 
      echo ""; 
      while($row = mysql_fetch_array($rs)){ 
     echo "<table> 
      <tr> 
       <th align='left' valign='middle'>Capacity</th> 
       <td align='left' valign='middle'>$row[capacity]</td> 
      </tr> 
      <tr> 
       <th align='left' valign='middle'>C2</th> 
       <td align='left' valign='middle'>$row[c2]</td> 
       </tr>    
      </table>"; 
     } 

Answer 1

嘗試更換這個while循環和檢查，可能它會爲你工作：

while($row = mysql_fetch_array($rs)){ 
    $row['c2'] = ($row['c2'] == '03') ? 'K9' : $row['c2'] ; 
    $row['c2'] = ($row['c2'] == 'O4') ? 'k10' : $row['c2'] ; 
    echo "<table> 
     <tr> 
      <th align='left' valign='middle'>Capacity</th> 
      <td align='left' valign='middle'>$row[capacity]</td> 
     </tr> 
     <tr> 
      <th align='left' valign='middle'>C2</th> 
      <td align='left' valign='middle'>$row[c2]</td> 
      </tr>    
     </table>"; 
    }