title: Magento php core. Editing Product List Catalog
body: <p>I've got a quick questions for magento experts. I would like to make changes on the PHP core of magento.</p>
  
  <p>I want to add details on product listings, the details will depends on each product, and I want to display the extra details on the catalog list, so it involves the database &amp; PHP. </p>
  
  <p>So my questions is - where can do this? I am not familiar with the magento file structure and I need this rush, I hope I'll have time to study its structure but it will probably take more time than my deadline.</p>
  
  <p><strong>Take note that I am talking about the admin product list, not the customer carting.</strong></p>