diff --git a/framework/db/Migration.php b/framework/db/Migration.php
index 79a5abcf27..0db728fbe6 100644
--- a/framework/db/Migration.php
+++ b/framework/db/Migration.php
@@ -358,15 +358,15 @@ class Migration extends \yii\base\Component
 	 * The method will properly quote the table and column names.
 	 * @param string $name the name of the foreign key constraint.
 	 * @param string $table the table that the foreign key constraint will be added to.
-	 * @param string $columns the name of the column to that the constraint will be added on. If there are multiple columns, separate them with commas.
+	 * @param string $columns the name of the column to that the constraint will be added on. If there are multiple columns, separate them with commas or use an array.
 	 * @param string $refTable the table that the foreign key references to.
-	 * @param string $refColumns the name of the column that the foreign key references to. If there are multiple columns, separate them with commas.
+	 * @param string $refColumns the name of the column that the foreign key references to. If there are multiple columns, separate them with commas or use an array.
 	 * @param string $delete the ON DELETE option. Most DBMS support these options: RESTRICT, CASCADE, NO ACTION, SET DEFAULT, SET NULL
 	 * @param string $update the ON UPDATE option. Most DBMS support these options: RESTRICT, CASCADE, NO ACTION, SET DEFAULT, SET NULL
 	 */
 	public function addForeignKey($name, $table, $columns, $refTable, $refColumns, $delete = null, $update = null)
 	{
-		echo "    > add foreign key $name: $table ($columns) references $refTable ($refColumns) ...";
+		echo "    > add foreign key $name: $table (" . implode(',', (array)$columns) . ") references $refTable (" . implode(',', (array)$refColumns) . ") ...";
 		$time = microtime(true);
 		$this->db->createCommand()->addForeignKey($name, $table, $columns, $refTable, $refColumns, $delete, $update)->execute();
 		echo " done (time: " . sprintf('%.3f', microtime(true) - $time) . "s)\n";
@@ -390,12 +390,12 @@ class Migration extends \yii\base\Component
 	 * @param string $name the name of the index. The name will be properly quoted by the method.
 	 * @param string $table the table that the new index will be created for. The table name will be properly quoted by the method.
 	 * @param string $column the column(s) that should be included in the index. If there are multiple columns, please separate them
-	 * by commas. The column names will be properly quoted by the method.
+	 * by commas or use an array. The column names will be properly quoted by the method.
 	 * @param boolean $unique whether to add UNIQUE constraint on the created index.
 	 */
 	public function createIndex($name, $table, $column, $unique = false)
 	{
-		echo "    > create" . ($unique ? ' unique' : '') . " index $name on $table ($column) ...";
+		echo "    > create" . ($unique ? ' unique' : '') . " index $name on $table (" . implode(',', (array)$column) . ") ...";
 		$time = microtime(true);
 		$this->db->createCommand()->createIndex($name, $table, $column, $unique)->execute();
 		echo " done (time: " . sprintf('%.3f', microtime(true) - $time) . "s)\n";