How to Call Function From Separate WordPress Install on Same Server?

Your include path is incorrect. You have: require_once( dirname(__FILE__) . ‘../../../../global_functions.php’); When it should be: require_once( dirname(__FILE__) . ‘../../../../functions/global_functions.php’); The other alternative would be to change your setup from individual standalone installations of WordPress to WordPress Multi-site. You would then have a couple of options: Option #1 being a Must-Use Plugin. Option #2 being a … Read more