Check the mu-plugins directory and retrieve all mu-plugin files with any plugin data.

WordPress only includes mu-plugin files in the base mu-plugins directory (wp-content/mu-plugins).

Signature

get_mu_plugins()

Return

(array) Key is the mu-plugin file path and the value is an array of the mu-plugin data.

Source

function get_mu_plugins() {
	$wp_plugins = array();
	// Files in wp-content/mu-plugins directory
	$plugin_files = array();

	if ( ! is_dir( WPMU_PLUGIN_DIR ) )
		return $wp_plugins;
	if ( $plugins_dir = @ opendir( WPMU_PLUGIN_DIR ) ) {
		while ( ( $file = readdir( $plugins_dir ) ) !== false ) {
			if ( substr( $file, -4 ) == '.php' )
				$plugin_files[] = $file;
		}
	} else {
		return $wp_plugins;
	}

	@closedir( $plugins_dir );

	if ( empty($plugin_files) )
		return $wp_plugins;
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