ID, ‘large_preview’, true); ?>” alt=”Featured Post” />

What we are doing here is first using a simple if statement to make sure the image is there, and if it is then we print it out as the source of the tag. If we didn’t check to make sure the image URL existed and outputted an empty image tag, we’d show a broken image in the browser. So again it’s much better to degrade gracefully. Complex Example – Showing Featured Posts in the Sidebar Let’s try another example. Imagine if we wanted to add a set of featured “Best of” posts at the end of each post, so that readers could quickly go on and browse the best content our site has to offer. What we could do is: 1. Create a Custom Field called “feature”. It can have any value at all, because we’ll assume that if the field has been set, then the post is meant to be featured. So a simple “Yes” value would suffice. 2. Then in our sidebar.php file we’ll create a custom loop using WP_Query. We’ll make it loop through the posts checking to see if the Custom Field exists and if it does, then we show a link. Here’s the code we need:90:T4ed,218 Tools for Advanced Theming So here we run a WP_Query, not unlike our query to find recent posts in Chapter 5, only this time we check each time to see if the Custom Field feature has a value. Adding Theme Options Not every WordPress user is going to be familiar enough with HTML and PHP to edit theme files in order to customize a WordPress theme. Indeed it is our job to make editing

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