odbc_close
    (PHP 3>= 3.0.6, PHP 4 )
odbc_close -- Close an ODBC connection
Description
void 
odbc_close ( resource connection_id)
     odbc_close() will close down the connection to      the database server associated with the given connection      identifier.      
Note:         This function will fail if there are open transactions on this        connection.  The connection will remain open in this case.