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<?php
add_filter( 'option_active_plugins', 'activate_local_plugins' );
/**
 * Add our local plugins to the list of active plugins.
 */
function activate_local_plugins( $plugins ) {
	if ( '127.0.0.1' == $_SERVER['SERVER_ADDR'] ) {
		$local_plugins = array(
			'wordpress-beta-tester/wp-beta-tester.php',
			'wordpress-importer/wordpress-importer.php',
		);
		foreach ( $local_plugins as $plugin ) {
			$plugins[] = $plugin;
		}
	}
	return $plugins;
}