资源类型
mssql link
A connection link returned by mssql_connect() and mssql_pconnect().
mssql result
A result handle returned by mssql_query() on SELECT queries.
mssql statement
A statement handle returned by mssql_init().
A connection link returned by mssql_connect() and mssql_pconnect().
A result handle returned by mssql_query() on SELECT queries.
A statement handle returned by mssql_init().