--- a/wp/wp-admin/install-helper.php	Tue Jun 09 11:14:17 2015 +0000
+++ b/wp/wp-admin/install-helper.php	Mon Oct 14 17:39:30 2019 +0200
@@ -154,13 +154,15 @@
  *
  * @since 1.0.0
  *
+ * @global wpdb $wpdb WordPress database abstraction object.
+ *
  * @param string $table_name Table name
- * @param string $col_name Column name
- * @param string $col_type Column type
- * @param bool $is_null Optional. Check is null.
- * @param mixed $key Optional. Key info.
- * @param mixed $default Optional. Default value.
- * @param mixed $extra Optional. Extra value.
+ * @param string $col_name   Column name
+ * @param string $col_type   Column type
+ * @param bool   $is_null    Optional. Check is null.
+ * @param mixed  $key        Optional. Key info.
+ * @param mixed  $default    Optional. Default value.
+ * @param mixed  $extra      Optional. Extra value.
  * @return bool True, if matches. False, if not matching.
  */
 function check_column($table_name, $col_name, $col_type, $is_null = null, $key = null, $default = null, $extra = null) {