How to Check if Meta Value Exist in WordPress Query

On a loop that performs data from custom meta field, to check if the meta key has value or exist, we can use the following query:

The above code can be used in WordPress older than 3.5 but it still usable in the latest version of WP, currently 5.1.

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Featured Image as Previous Next Post Navigation in WordPress

Just add this code to single.php, replace or comment the default function like the_post_navigation, get_previous_post, get_next_post, etc.

Easy!

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Gravity Forms: Retain the Form After a Form Submitted

By default, if you use Gravity Forms, after you complete a form, a notification will be shown, and the form will be dismissed. Below is the script to retain the form after a form is submitted.

Just paste into functions.php and change the _id with the form ID.

I found this script somewhere, but I will credit the original source once I found it.

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