## 例

`

     int ingres_errno ([ resource $link ] )

`

## 説明

Returns an integer containing the last error number. If no error was reported 0 is returned. If a link resource is passed to ingres_errno() it returns the last error recorded for the link. If no link is passed, then ingres_errno() returns the last error reported using the default link. The function, ingres_errno(), should always be called after executing a database query. Calling another function before ingres_errno() is called will reset or change any error code from the last Ingres function call.

## 戻り値

Returns an integer containing the last error number. If no error was reported, 0 is returned.