The Wordpress Guru » Tips & Tricks on Making a Killer CMS with WordPress

I’ve had a recent request regarding a popular tweak for WordPress – that is, to add custom page header images to any page in WordPress. There are one or two plugins that do this, but with a bit of creativity you can accomplish this very easily using WordPress custom fields and it’s built in image uploader. Here’s how:

The basics

You’re basically going to setup a number of if/else statements in your template where you want your header image to appear. The final statement will be an else statement so that if none of the above rules apply, it’ll degrade so that you’ll always have a header image on your page.

You’re going to create a custom field that has the name of the image that you want to use as a header image. You don’t have to add the full path to the image. Since you’re uploading your custom image in the WordPress uploader, it’ll always end up in the same folder and so the path to the image will be entered in the template.

The how-to

So firstly create your image, and upload it to your page.

Then add a custom field called “header” and put the name of the file as the value of the field.

Then open up your template where you want your image to appear and add the following PHP – tailored to work as you need it to…

<? if (get_post_meta($post->ID, 'header', true)) { ?>
	<img src="<? bloginfo('url'); ?>/wp-content/uploads/<? echo get_post_meta($post->ID, 'header', true) ?>" alt="<? bloginfo('name'); ?>" />
<? } else { ?>
	<img src="<? bloginfo('template_directory'); ?>/images/header.jpg" />
<? } ?>

So what you’ve now done, is tell the template to check if the custom field “header” has a value. If it does, then use that value to display your image. However, if the custom field is empty, then it’ll degrade to the second default image that you specify.

And presto: you can now use your WP admin to control header images on each page. This is also a good way to do it because now your client can update/add his header images on his own without having to bug you.