Written by Admin on 2025-05-06

Show Custom Fields on WordPress only if they are not Null

WordPress is an amazing platform when it comes to building and managing websites. With its extensive range of customizations and plugins, WordPress offers an enormous amount of flexibility to its users.

One of the most useful features of WordPress is custom fields, which allows users to add extra data to their posts or pages. However, showing a custom field only when it contains data is challenging. This article will guide you on how to show custom fields on WordPress only when they are not null.

What are Custom Fields in WordPress?

Custom Fields in WordPress allow users to add additional information to their posts and pages. This information can be anything, such as a text entry, a dropdown menu, a checkbox, a file upload, and so on.

Custom fields are incredibly flexible and customizable, making them ideal for adding metadata or tagging information to your content. You can add them to any type of post or page, including custom post types.

Here is an example of how a custom field looks like on the WordPress editor page:

This is a simple custom field named author, which accepts text input.

Why Show Custom Fields only if they are not Null?

If your custom field contains default text such as "N/A," "Unknown," or "Not Available," it doesn't make sense to show the custom field on your website. Displaying such fields on your site can look awkward and unprofessional.

By showing custom fields only when they contain data, you can avoid displaying empty fields, which can improve the overall user experience.

How to Show Custom Fields only if they are not Null

You can use WordPress conditional tags and functions to check whether the custom field is null and only display it if it contains data. Here is a simple code snippet that illustrates how to do this:

php <?php if ( get_post_meta(get_the_ID(), 'author', true) !== '' ) { ?> <p><?php echo get_post_meta(get_the_ID(), 'author', true); ?></p> <?php } ?>

In this code snippet, we are using the get_post_meta() function to get the value of the author custom field. The !== '' statement checks whether the value is not null or empty. If the value is not empty, the code within the curly braces will be executed and display the custom field.

You can modify this code snippet to suit your specific requirements. If you have an array of custom fields, you can use a foreach loop to iterate through them and display only the non-empty fields.

```php fields = array( 'author', 'publisher', 'releasedate', 'price' );

foreach ( $customfields as $field ) { $value = getpostmeta( getthe_ID(), $field, true ); if ( $value !== '' ) { echo '

' . $field . ': ' . $value . '

This code snippet iterates through an array of custom fields and displays their values if they are not empty. It also adds a label to each field for better readability.

Conclusion

Showing custom fields on WordPress only when they contain data can improve the overall user experience and make your website look more professional. By using WordPress conditional tags and functions, you can easily check whether a custom field is null and display it only if it contains data. We hope this article has helped you understand how to show custom fields on WordPress only when they are not null.