PHP / MySQL将查询结果显示为其他内容

Question

I have a MySQL table which I'm echo'ing out to a php file as a table.

$query = "SELECT * FROM $tablename";

I want to be able to define alternative words when a particular word appears in one of the cells. eg the database contains the word "y" and I want to show "Yes!"

I'd like to do it hard coded, so a set of words always replaces another set of words, and also the option for two variables to be entered, one from the database, and the other the word to display.

I've been researching into CASE Statements, and switch blocks, however i'm not sure if I'm on the right path.

Any help would be appreciated.

I think i need to be able to get my data more separate, to be able to do anything with it, this is what I have:

$query = "SELECT * FROM $tablename order by timestamp desc";
$result = mysqli_query($connect, $query);

<?php while($row1 = mysqli_fetch_array($result)):;?>

            <tr>
                <td><?php echo $row1[5];?></td>
                <td><?php echo $row1[3];?></td>
                <td><?php echo $row1[0];?></td>
                <td><?php echo $row1[7];?></td>
            </tr>
            <?php endwhile;?> 

5,3,0 and 7 being the columns I want to show

Answer 1

Yes case-when needs to be used:

select
case when col1 = 'y' then 'Yes'
     when col1 = 'n' then 'NO' end
from tableName1;