Warning: This function is
EXPERIMENTAL. The behaviour of this function, the
name of this function, and anything else documented about this
function may change without notice in a future release of PHP.
Use this function at your own risk.
Get the base type for this type.
Returns the SDO_Model_Type for the base type if this type inherits from
another, otherwise returns NULL
. An example of when base types occur
is when a type defined in XML schema inherits from another type by using
<extension base="..."> .
Return Values
Returns the SDO_Model_Type for the base type if this type inherits from
another, otherwise returns NULL
.