What is WordPress Hook: mu_plugin_loaded
The mu_plugin_loaded hook is a specific hook in WordPress that is used to execute functions when the must-use plugins file is loaded. This hook allows developers to perform actions or add custom functionality when the must-use plugins are loaded during the WordPress initialization process.
Understanding the Hook: mu_plugin_loaded
The mu_plugin_loaded hook is located within the wp-settings.php file, which is responsible for setting up and loading various essential WordPress components. This hook is triggered after the must-use plugins file is included, allowing developers to perform additional tasks or modifications at this specific point in the WordPress initialization process.
Hook Parameters (if applicable): mu_plugin_loaded
The mu_plugin_loaded hook does not accept any arguments or parameters. It is simply a trigger point for executing functions or code when the must-use plugins file is loaded.
Hook Doesn’t Work: mu_plugin_loaded
If the mu_plugin_loaded hook doesn’t work as expected, it could be due to incorrect usage or conflicts with other hooks or functions. To troubleshoot this issue, developers should ensure that the hook is being used in the appropriate context and that any added functions are properly defined and implemented.
Best Practices & Usage Notes (if applicable): mu_plugin_loaded
When using the mu_plugin_loaded hook, it is important to note that any functions or code added to this hook should be essential for the initialization process or must-use plugins functionality. It is not recommended to use this hook for non-essential tasks or modifications, as it may impact the overall performance and stability of the WordPress site.
mu_plugin_loaded Usage Example: mu_plugin_loaded
“`php
function custom_mu_plugin_function() {
// Add custom functionality for must-use plugins initialization
}
add_action( ‘mu_plugin_loaded’, ‘custom_mu_plugin_function’ );
“`
