使用SQL查询中的数据，但不显示表中的列

Question

EDIT: If I use $colName instead of $colname, I'd have no issues. Stupid, simple fix.

I have a query pulling 6 columns from multiple tables. The final column is necessary to be used in a dynamic URL I'm generating, but I don't want that column to display on my table. How can I hide it/make it not show up? Is there a way to call the data, but not use it in my table?

Query ex:

SELECT a, b, c, d, e, exTable.f as CID
FROM table exTable
JOIN <other tables>
WHERE stuff happens

Table (you can see that my header row will hide fine, but the content won't):

<table>
<thead>
    <tr>
        <th class="header"><strong>A</strong></th>
        <th class="header"><strong>B</strong></th>
        <th class="header"><strong>C</strong></th> 
        <th class="header"><strong>D</strong></th>
        <th class="header"><strong>E</strong></th>
        <th class="header" style="display:none"><strong>F</strong></th> <!-- THIS WORKS -->
    </tr>
</thead>
<tbody>
    <?
        foreach($tableData as $row)
        {
            echo "<tr>";
            foreach($tableColNames as $colName)
                {
                    if ($colname=='CID') {
                    echo "<td style='display:none'>" . $row[$colName] . "</td>"; <!-- THIS DOES NOT -->
                    }
                    elseif ($colName=='e') {
                        echo "<td><a href='http://my.url.here/".$row[CID]."_Document.pdf' target='_blank'>" . $row[$colName] . " </a></td>";
                    }
                    else {
                    echo "<td>" . $row[$colName] . "</td>";
                    }
                }
            echo "</tr>";
        }
        ?>
    </tbody>
</table>

Answer 1

You have a typo: $colname should be $colName.

if ($colname=='CID') {