Blank page diagnose. IF problems - php

Question

What I'm trying to do is add a elevatezoom gallery and create those little squares based on the result they get from mysql(if photo1 is set to any location then square1 appears , if photo2 is set to a location , square 2 appears , if photo3 is empty , nothing appears(you get the idea)
The problem is , after the next edits , I'm getting a blank page.
This is the whole code .
<?php use_helper("StaticUrl");?>
<div class="product_image">
<?php
$href = url_for($product->getRouteUrl(ESC_RAW));
if ($sf_context->getActionName() == 'view')
{
$href = static_url_for($product->generatePhotoPath('large',ESC_RAW));
}
?>
<a <?php echo $sf_context->getActionName() == 'view' ? 'class="lightbox"' : ''; ?> href="<?php echo $href;?>" title="<?php echo $product; ?>">
<img src="<?php echo static_url_for($product->generatePhotoPath(ESC_RAW)); ?>" alt="<?php echo $product; ?>" data-zoom-image="<?php echo static_url_for($product->generatePhotoPath('large',ESC_RAW)); ?>" class="zoom" style="z-index:999999;" />
</a>
<?php
$resultt = Doctrine_Query::create()->from("Product")
->select("photo1")
->where("id = ?", $product_id)
->fetchOne(array(), Doctrine_Core::HYDRATE_ARRAY);
if (empty($resultt))
{
return sfView::NONE;
}
?>
<?php if(isset(resultt)){ ?>
<div id="gal1">
<a href="#" data-image="<?php echo url_for($product->generatePhotoPath("small", 1, ESC_RAW)); ?>" data-zoom-image="<?php echo url_for($product->generatePhotoPath("large", 1, ESC_RAW)); ?>">
<img id="img_01" src="<?php echo url_for($product->generatePhotoPath("small", 1, ESC_RAW)); ?>" />
</a>
<?php } ?>
<a href="#" data-image="<?php echo url_for($product->generatePhotoPath("small", 2, ESC_RAW)); ?>" data-zoom-image="<?php echo url_for($product->generatePhotoPath("large", 2, ESC_RAW)); ?>">
<img id="img_01" src="<?php echo url_for($product->generatePhotoPath("small", 2, ESC_RAW)); ?>" />
</a>
<a href="#" data-image="<?php echo url_for($product->generatePhotoPath("small", 3, ESC_RAW)); ?>" data-zoom-image="<?php echo url_for($product->generatePhotoPath("small", 3, ESC_RAW)); ?>">
<img id="img_01" src="<?php echo url_for($product->generatePhotoPath("small", 3, ESC_RAW)); ?>" />
</a>
</div>
</div>
<script src="/js/elevatezoom/jquery.elevatezoom.js" type="text/javascript"></script>

Answer 1

You have an error on line 27 of what you posted which reads:
if(isset(resultt)){
The error is:
Fatal error: Cannot use isset() on the result of an expression (you can use "null !== expression" instead)
When trying to find errors it helps to turn on all errors so things like this will show up. Use
error_reporting (E_ALL);
at the top of your script while developing.