Re: loop structure

[Robert Cummings <robert@xxxxxxxxxxxxx>]

On Sat, 2006-09-09 at 16:49 +0200, Reinhart Viane wrote:
> I've been experimenting some time now but i can't get it right.
> I have a database in which I have a table with a list of photo_url
> 
> Table: photos
> Id	photo_url
> 1	photos/boeket_s40.jpg
> 2	photos/boeket_k12.jpg
> 3	photos/boeket_z23.jpg
> ...
> 
> 
> I get this out of the database with this query:
> $sqlphoto="select * from photos where photo_type='$category'";
> $exephoto=mysql_query($sqlphoto) or die (mysql_error());
> 
> Now I need a loop so that the photos are put into a table:
> 
> <table width="420" border="0" cellpadding="0" cellspacing="0">
>         <!--DWLayoutTable-->
> 
>         <tr>
>           <td width="17" height="110"
> valign="top"><!--DWLayoutEmptyCell-->&nbsp;</td>
>           <td width="120" valign="top">PICTURE HERE</td>
>           <td width="13" valign="top"><!--DWLayoutEmptyCell-->&nbsp;</td>
>           <td width="120" valign="top"> PICTURE HERE </td>
>           <td width="13" valign="top"><!--DWLayoutEmptyCell-->&nbsp;</td>
>           <td width="120" valign="top"> PICTURE HERE </td>
>           <td width="13"><!--DWLayoutEmptyCell-->&nbsp;</td>
> 	    <td width="4"><!--DWLayoutEmptyCell-->&nbsp;</td>
>         </tr>
>         <tr>
>           <td height="15"></td>
>           <td></td>
>           <td></td>
>           <td></td>
>           <td></td>
>           <td></td>
>           <td></td>
>         </tr>
>       </table>
> 
> The first <tr> must be looped as long as there are photos in the array (so
> something like #lines in array/3, with ceil())
> In each <tr> there are 3 pictures in it's <td> tags:
>  so maybe something like 
>  for ($i=1;$i<3;$i++){
>  <td width="120" valign="top">PICTURE HERE</td>
>  <td width="13" valign="top"><!--DWLayoutEmptyCell-->&nbsp;</td>
>  } 
> 
> I have tried several thing and I'm able to create the correct amount of rows
> and the loop for the 3 cells in the row.
> Unfortunately it always only shows the first picture from the array in each
> of those cells.
> 
> Can someone help me out? THX

Untested... ... ...

<?php

if( ($result = mysql_query( $query )) === false )
{
    // do something other than die you lazy ass programmers.
}
else
{
    $hits = mysql_num_rows( $result );
    $cols = 3;
    $rows = ceil( $hits / $cols );

    for( $i = 0; $i < $rows; $i++ )
    {
        for( $j = 0; $j < $cols; $j++ )
        {
            $picture = '';
            if( ($item = mysql_fetch_assoc( $result )) !== false )
            {
                echo '<td width="120" valign="top">'
                    .$item['picture']
                    .'</td>'
                    .'<td width="13" valign="top">'
                    .'<!--DWLayoutEmptyCell-->&nbsp;'
                    .'</td>';
            }
        }
    }
}

?>

Cheers,
Rob.
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