What is WordPress Hook: after_mu_upgrade
The after_mu_upgrade hook is a specific hook in WordPress that allows developers to execute custom functions or code after a WordPress MultiSite upgrade has been completed. This hook provides an opportunity to perform additional tasks or modifications after the upgrade process.
Understanding the Hook: after_mu_upgrade
The after_mu_upgrade hook is located within the WordPress core files and is triggered after the completion of a WordPress MultiSite upgrade. It allows developers to add their own custom functions or code to be executed at this specific point in the upgrade process.
Hook Parameters (if applicable): after_mu_upgrade
The after_mu_upgrade hook does not accept any specific parameters or arguments. It is simply a trigger point for executing custom code after a MultiSite upgrade.
Hook Doesn’t Work: after_mu_upgrade
If the after_mu_upgrade hook doesn’t work as expected, it could be due to conflicts with other plugins or themes that are also modifying the upgrade process. It is recommended to deactivate other plugins and switch to a default theme to troubleshoot any potential conflicts.
Best Practices & Usage Notes (if applicable): after_mu_upgrade
When using the after_mu_upgrade hook, it is important to consider the potential impact of the custom code being executed after the upgrade process. It is best practice to thoroughly test any custom functions or code to ensure they do not interfere with the functionality of the WordPress MultiSite installation.
Usage Example: after_mu_upgrade
“`php
function after_mu_upgrade_custom_function() {
// Add custom code to be executed after a MultiSite upgrade
}
add_action( ‘after_mu_upgrade’, ‘after_mu_upgrade_custom_function’ );
“`
