Function and usage of get_mu_plugins() in wordpress

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    2024-01-07T12:21:15+00:00

    The get_mu_plugins() function in WordPress is used to manage "must-use" plugins, which are a specific type of plugin in WordPress. Here's a detailed explanation:

    Function

    • get_mu_plugins() : array[]

    Purpose

    • The function get_mu_plugins() checks the mu-plugins directory (which stands for "must-use plugins") and retrieves information about all the mu-plugin files located there.

    Description

    • In WordPress, "mu-plugins" (must-use plugins) are placed in a special directory: wp-content/mu-plugins.
    • Unlike regular plugins, mu-plugins are automatically activated and cannot be deactivated through the WordPress admin interface. This makes them suitable for critical functionality that should always be available.
    • The get_mu_plugins() function scans this directory and retrieves data about each mu-plugin file present.

    Return Value

    • The function returns an array of arrays.
    • Each sub-array contains data about a specific mu-plugin file, and these arrays are keyed by the plugin file name.
    • The data structure is similar to what is returned by the get_plugin_data() function, which means it includes details like the plugin's name, version, description, author, and more.

    Sample Usage

    Here's an example of how you might use get_mu_plugins():

    $mu_plugins = get_mu_plugins();
    foreach ( $mu_plugins as $plugin_file => $plugin_data ) {
        echo 'Plugin Name: ' . $plugin_data['Name'] . '<br>';
        echo 'Description: ' . $plugin_data['Description'] . '<br>';
        // ... other plugin data fields
    }
    

    In this example, the get_mu_plugins() function is called to retrieve an array of mu-plugin data. A foreach loop is then used to iterate over each plugin, outputting its name and description. This is a simple way to list all the must-use plugins and their details on your WordPress site.

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