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i have the shopsystem plugin running at my site, and added the prdct_extra lines to be able to add some extra photo's.
but when there is no photo-url added it does add the code accept for the URL that was not added
so i get an image with a dead url

how can i change the code in the shopsystem.detail.php code so it shows a "No Photo" image when the prdct_extra field is empty?

i tried a little bit myself but i have no php coding skills at all 

or:

<!-- IF {SHOPSYSTEM EXTRA LINE} -->

{SHOPSYSTEM EXTRA LINE}

<!-- ELSE -->

<img src="{WHAT_EVER_THE_IMG_TAG_IS}" /> (e.g. no image photo)

<!-- ENDIF -->

i changed some things but it still shows the code where there shouldn't be an img like this

<a href="datas/users/1/"><img src="datas/users/1/" width="100px" id="ads" ">

     {SHOPSYSTEM_ITEMS}
<!-- IF {SHOPSYSTEM_ITEMSEX4} -->{SHOPSYSTEM_ITEMSEX4}<!-- ENDIF -->
<!-- IF {SHOPSYSTEM_ITEMSEX5} -->{SHOPSYSTEM_ITEMSEX5}<!-- ENDIF -->
<!-- IF {SHOPSYSTEM_ITEMSEX6} -->{SHOPSYSTEM_ITEMSEX6}<!-- ENDIF -->
<!-- IF {SHOPSYSTEM_ITEMSEX7} -->{SHOPSYSTEM_ITEMSEX7}<!-- ENDIF -->
<!-- IF {SHOPSYSTEM_ITEMSEX8} -->{SHOPSYSTEM_ITEMSEX8}<!-- ENDIF -->
<!-- IF {SHOPSYSTEM_ITEMSEX9} -->{SHOPSYSTEM_ITEMSEX9}<!-- ENDIF -->
     {SHOPSYSTEM_ITEMSEND}
     {SHOPSYSTEM_OPENCLOSED}

Added 2 hours later:

already found a solution!

He wanted to show a 'No image available' image when a product didn't have an image.
He's using an old shop plugin for Genoa, and most of the stuff posted above wasn't going to work.

Because he manually needed to add images to every product anyway, I suggested he could just as well manually add a 'No image available' image to products that didn't have their own image.

Nah, the code in the shop plugin is like this:

while ($row = sed_sql_fetcharray($sql))
{  
    // products output
    $shopsystem_items .= "<div id=\"shop_item\">";
    $shopsystem_items .= "<div id=\"shop_image\">";
    $shopsystem_items .= "<h2>".$L['shopystem']['prdcttitle']."".$row['prdct_title']."</h2><hr />";
    $shopsystem_items .= "<center><a href=\"plug.php?e=shopsystem&m=detail&id=".$row['prdct_id']."\"><img src=\"datas/".$cfg['plugin']['shopsystem']['shopsystem_thumbimg']."/".$cfg['plugin']['shopsystem']['shopsystem_userid']."/".$row['prdct_url']."\" width=\"".$cfg['plugin']['shopsystem']['shopsystem_xthumb']."\"></a></center>";
    $shopsystem_items .= "</div>";
    $shopsystem_items .= "<div id=\"shop_desc\" style=\"width:".$cfg['plugin']['shopsystem']['shopsystem_xdesc'].";\">";
    $shopsystem_items .= "<h2>".$L['shopystem']['prdctdesc']."</h2><hr />";
    $shopsystem_items .= "<p><img src=\"plugins/shopsystem/img/help.png\"> ".$row['prdct_desc']."</p>";
    $shopsystem_items .= "<p><img src=\"plugins/shopsystem/img/money.png\"> ".$row['prdct_price']." ".$cfg['plugin']['shopsystem']['shopsystem_money']."</p>";
    $shopsystem_items .= "<p><img src=\"plugins/shopsystem/img/cart_error.png\"> ".$row['prdct_amount']." ".$L['shopystem']['prdct_amount']."</p>";
    $shopsystem_items .= "<a href=\"plug.php?e=shopsystem&m=cart&id=".$row['prdct_id']."\"><img src=\"plugins/shopsystem/img/cart_add.png\"> ".$L['shopystem']['prdctaddtocart']."</a>";
    $shopsystem_items .= "<a href=\"plug.php?e=shopsystem&m=detail&id=".$row['prdct_id']."\"><img src=\"plugins/shopsystem/img/magnifier.png\"> ".$L['shopystem']['prdctdetails']."</a>";
    $shopsystem_items .= "</div>";
    $shopsystem_items .= "</div>";
}

$t-> assign(array(
    "SHOPSYSTEM_TITLE" => $plugin_title, 
    "SHOPSYSTEM_OPENCLOSED" => $plugin_closed, 
    "SHOPSYSTEM_LOGO" => "<img src=\"".$cfg['plugin']['shopsystem']['shopsystem_logo']."\">", 
    "SHOPSYSTEM_ITEMS" => $shopsystem_items, 
    "SHOPSYSTEM_SUBTITLE" => $shopsystem_menu,    
));

#36729 lukgoh:

Oh yeah, wow. I need to get my shop module finished so people can stop using this outdated stuff. 

How's that shop module coming along?

this is what i wanted, if prdct_extra4 is empty (or now i set '0' in the form were i add the photo's) there is a 'nophoto' image showing.

if($row1['prdct_extra4']=='0') 
{ $shopsystem_items .= "<td width=\"200px\"><img src=\"images/nophoto.jpg\" width=\"100px\" id=\"ads\" ></td>";}
 else { $shopsystem_items .= "<td width=\"200px\"><a href=\"datas/users/".$cfg['plugin']['shopsystem']['shopsystem_userid']."/".$row1['prdct_extra4']."\" class=\"fancybox\">
<img src=\"datas/users/".$cfg['plugin']['shopsystem']['shopsystem_userid']."/".$row1['prdct_extra4']."\" width=\"100px\" id=\"ads\" ></a></td>"; };