Added $length parameter to Driver/Statement interface so it follows

previous changes in bindparam function

lib/Doctrine/DBAL/Driver/Statement.php

@@ -70,9 +70,10 @@ interface Statement extends ResultStatement
      * @param integer $type         Explicit data type for the parameter using the PDO::PARAM_* constants. To return
      *                              an INOUT parameter from a stored procedure, use the bitwise OR operator to set the
      *                              PDO::PARAM_INPUT_OUTPUT bits for the data_type parameter.
+     * @param integer $length		You must specify maxlength when using an OUT bind so that PHP allocates enough memory to hold the returned value.
      * @return boolean              Returns TRUE on success or FALSE on failure.
      */
-    function bindParam($column, &$variable, $type = null);
+    function bindParam($column, &$variable, $type = null, $length = null);
 
     /**
      * errorCode