Add Additional Links To The WordPress Plugin Admin

gistfile1.php

add_filter('plugin_row_meta',  'register_plugins_links', 10, 2);
/**
 * Add Additional Links To The WordPress Plugin Admin
 * 
 * @see   http://www.paulund.co.uk/add-additional-links-to-the-wordpress-plugin-admin 
 */
function register_plugins_links ($links, $file) {
   $base = plugin_basename(__FILE__);
   if ($file == $base) {
	   $links[] = '<a href="admin.php?page=settings_plugin">' . __('Settings') . '</a>';
	   $links[] = '<a href="http://domain.com/FAQ/">' . __('FAQ') . '</a>';
	   $links[] = '<a href="http://domain.com/contact-us">' . __('Support') . '</a>';
	   $links[] = '<a href="https://plus.google.com/u/0/b/104753541785944238696/">' . __('Google Plus Page') . '</a>';
   }
   return $links;
}

add_filter( 'plugin_action_links_' . plugin_basename( __FILE__ ), 'link_action_on_plugin' );
/**
 * add links to the left side menu on the plugin screen.
 * 
 * @see 	http://www.paulund.co.uk/add-additional-links-to-the-wordpress-plugin-admin 
 */
function link_action_on_plugin( $links ) {
	return array_merge( array( 'settings' => '<a href="' . admin_url( '/wp-admin/tools.php?page=the-plugin-settings-page.php' ) . '">' . __( 'Settings', 'domain' ) . '</a>'), $links);
}