update-core-custom_{$action}

What is WordPress Hook: update-core-custom_{$action}

The update-core-custom_{$action} hook in WordPress is used to perform custom actions when the core is updated. It allows developers to add their own custom functionality or code to be executed when the WordPress core is updated.

Understanding the Hook: update-core-custom_{$action}

The update-core-custom_{$action} hook is located within the update_core() function in the wp-admin/includes/update.php file. This function is responsible for handling the update process for the WordPress core. The hook is triggered at various points during the update process, allowing developers to intervene and execute their own custom code.

Hook Parameters (if applicable): update-core-custom_{$action}

The update-core-custom_{$action} hook does not accept any specific parameters. However, developers can access information about the update process and core version through global variables and WordPress functions within the hook’s callback function.

Hook Doesn’t Work: update-core-custom_{$action}

If the update-core-custom_{$action} hook doesn’t seem to be working, it could be due to a few reasons. Firstly, ensure that the hook is being added and executed correctly within the theme’s functions.php file or a custom plugin. Additionally, check for any conflicts with other plugins or themes that may be interfering with the hook’s functionality.

Best Practices & Usage Notes (if applicable): update-core-custom_{$action}

When using the update-core-custom_{$action} hook, it’s important to note that any custom code added should be thoroughly tested to ensure compatibility with future WordPress updates. Additionally, it’s recommended to use this hook sparingly and only for essential customizations to the core update process.

Usage Example: update-core-custom_{$action}

“`php
function custom_core_update_action() {
// Add custom code to be executed during core update
// Example: Log the update action to a custom log file
file_put_contents(ABSPATH . ‘custom-update-log.txt’, ‘Core updated on ‘ . date(‘Y-m-d H:i:s’), FILE_APPEND);
}
add_action(‘update-core-custom_{$action}’, ‘custom_core_update_action’);
“`

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