Overview
A WordPress Must-Use (MU) plugin functions similarly to other WordPress plugins, with one distinct feature that sets it apart. Unlike regular plugins, it remains active if the directory wp-content/mu-plugins contains its file(s). Notably, it doesn’t appear in the WordPress backend and doesn’t receive automatic updates; manual updates are necessary. Additionally, Must-Use plugins load before standard ones, following alphabetical order.
Characteristics of Must-Use Plugins
- Visibility: MU plugins do not appear in the WordPress admin dashboard.
- Updates: They do not receive automatic updates.
- Loading Order: Based on alphabetical order, MU plugins load before standard plugins.
Why Use Must-Use Plugins?
Whether to use MU plugins depends on individual preferences and specific use cases. They offer a solution if you require certain code to execute consistently. For further insights on this topic, refer to the official documentation.
How to Upload a Must-Use Plugin to Your Environment
Via SFTP
Login: Access your environment via SFTP.
Navigate: Go to ~/public/wp-content/mu-plugins.
Upload: Place your PHP file inside this directory. If the mu-plugins directory does not exist, create it by right-clicking and selecting “Create Directory”.
Via SSH
Login: Log into your environment via SSH.
Navigate: Use a built-in text editor (e.g., nano) to add your MU plugin:
nano ~/public/wp-content/mu-plugins/my-mu-plugin.php
Add Code: Insert your code and save the file.
Create Directory: If the mu-plugins directory does not exist, create it with:
mkdir ~/public/wp-content/mu-pluginsAs always, if you have any additional questions, please don’t hesitate to contact our support chat at servebolt.com!
