Creating the Main Pages of a PEAR CMS - Run the Query

Once we’ve created the query, we now have to run it. DB uses MySQL equivalent (mysql_query()) of $db->query() to run the query. The result of this query is stored in a variable called $res:

$res = $db->query($sql);

We test to see if any records have been returned, and then call the while loop to retrieve the records:

if($res){

while ($row = $res->fetchRow(DB_FETCHMODE_OBJECT)) {

?>

The code then builds rows and columns as appropriate to display the information. Each row in the table will display the title of the article and the name of the author who wrote the article. The title of the article provides a link to the view page that allows you to view an article in full:

<tr>

<td colspan="2" class="title"><a href="view.php?sid=<?php print $row->sid?>"

class="title"><?php print $row->title."..."; ?></a></td>

</tr>

<tr>

<td width="18%">&nbsp;</td>

<td width="82%" class="auth">by:<?php print $row->name ?></td>

</tr>

 The link in the title of the article has a query string attached to it. This query string will send a story ID or sid to the view page, which then uses that id to retrieve the appropriate story:

<td colspan="2" class="title"><a href="view.php? sid=<?php print $row->sid?> "

class="title"><?php print $row->title."..."; ?></a></td>

If the query does not return any records, we write an appropriate error message:

<?php

}//end while

}// no recs retrieved run else block

else{

?>

<tr>

<td colspan="2" class="maintxt"><p>No records found</p></td>

</tr>

<?php } ?>

</table>

The table is then closed and the rest of the HTML is also closed to complete the HTML page:

<!-- InstanceEndEditable --></td>

</tr>

<tr class="copy">

<td colspan="2">&copy;2008</td>

</tr>

</table>

</body>

<!-- InstanceEnd --></html>

In the next article we will delve more deeply into the page that allows us to view an article in full. Be sure to check back next week.