# odbc_errormsg

(PHP 4 >= 4.0.5, PHP 5, PHP 7)

odbc_errormsg — Get the last error message

### 说明

odbc_errormsg ([ resource `$connection_id` ] ) : string

Returns a string containing the last ODBC error message, or an empty string if there has been no errors.

### 参数

`connection_id`

  ODBC 连接标识符，详见 odbc_connect()。

### 返回值

If `connection_id` is specified, the last state of that connection is returned, else the last state of any connection is returned.

This function returns meaningful value only if last odbc query failed (i.e. odbc_exec() returned `FALSE`).

### 参见

- odbc_error() - Get the last error code
- odbc_exec() - Prepare and execute an SQL statement