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    <p>The scenario you are describing above seems like a good candidate for <a href="http://en.wikipedia.org/wiki/Model%E2%80%93view%E2%80%93controller" rel="nofollow">MVC</a>.</p> <p>In your case, I would create a class strictly for accessing the data (doing selects of product categories or specific products) and then have a different file (your view) take the output and display it.</p> <p>It could look something like this:</p> <pre><code>class Product_Model { public function find($prodId) { ... } public function fetchAll($category = '') { ... } public function search($string) { ... } } </code></pre> <p>Then somewhere else you can do:</p> <pre><code>$products = new Product_Model(); $list = $products-&gt;fetchAll(37); // get all from category 37 // in true MVC, you would have a view that you would assign the list to // $view-&gt;list = $list; foreach($ilst as $product) { echo "Product ID {$product['id']} - {$product['name']} - {$product['cost']}&lt;br /&gt;\n"; } </code></pre> <p>The basic principle of MVC is that you have model classes that are simply objects representing data from some data source (e.g. database). You might have a mapper that maps data from the database to and from your data objects. The controller would then fetch the data from your model classes, and send the information to the view, where the actual presentation is handled. Having view logic (html/javascript) in controllers is not desirable, and interacting directly with your data from the controller is the same.</p>
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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