odbc_close_all
    (PHP 3>= 3.0.6, PHP 4 )
odbc_close_all -- Close all ODBC connections
Description
void 
odbc_close_all ( void )
     odbc_close_all() will close down all      connections to database server(s).      
Note:         This function will fail if there are open transactions on a        connection. This connection will remain open in this case.