Guys, Need some help with this Image Code

Here is the code..

<img width="288" height="231" src="uploads/<?=$Threaddata['image'] ;?>" alt="<?=$Threaddata['username'] ;?>"/>

Code (markup):

here, this one shows the image if a user uploads an image, im trying to add a "php else function" feature where if the user doesnt upload an image a default image will be displayed.

Please help out, Thanks in advance

 

<?php
if ($Threaddata['image']) { ?>
   <img width="288" height="231" src="uploads/<?=$Threaddata['image'] ;?>" alt="<?=$Threaddata['username'] ;?>"/>
<?php }
else { ?>
   <b>something here</b>
<?php }
?>

PHP:

 

I have tried it, it results no error, but it not showing anything when i put the code. I tried to put an image between <b> ...</b> code.

 

<?php
if ($Threaddata['image']) { ?>
   <img width="288" height="231" src="uploads/<?=$Threaddata['image'] ;?>" alt="<?=$Threaddata['username'] ;?>"/>
<?php }
else { ?>
   <img width="288" height="231" src="default_avatar.jpg" alt="<?=$Threaddata['username'] ;?>"/>
<?php }
?>

PHP:

 

Thanks a lot Tnd8. Its working now..

 

If your still having problems, try using, file_exists

<?php $image_file = dirname(__FILE__) . '/uploads/' . $Threaddata['image'];
  if (file_exists($image_file)) // checks the upload directory for the image
    { ?>
   <img width="288" height="231" src="uploads/<?=$Threaddata['image'] ;?>" alt="<?=$Threaddata['username'] ;?>"/>
 <? } else { ?> // not found shows a default image 
<img width="288" height="231" src="uploads/default.jpg" alt="default.jpg"/>
<? } ?>

PHP:

 

Thanks "MyVodaFone" both ways work perfectly. Thanks..