Ticket #27703: 27703.2.diff

src/wp-includes/wp-db.php

@@ -2137 +2137 @@
          *
          * @since 2.7.0
          *
+         * @param bool $full Optional. Flag to provide the full version string, default false. Available since 3.9.0.
+         *
          * @return false|string false on failure, version number on success
          */
-        function db_version() {
+        function db_version( $full = false ) {
                 if ( $this->use_mysqli ) {
                         $server_info = mysqli_get_server_info( $this->dbh );
                 } else {
                         $server_info = mysql_get_server_info( $this->dbh );
                 }
-                return preg_replace( '/[^0-9.].*/', '', $server_info );
+
+                if ( $full ) {
+                        return $server_info;
+                } else {
+                        return preg_replace( '/[^0-9.].*/', '', $server_info );
+                }
         }
 }