| Summary information | |
|---|---|
| Default value | 0 | 
| Range of values | 0–32767 | 
| Status | Dynamic | 
| Display level | Intermediate | 
| Required role | System Administrator | 
The default language id parameter is the number of the language that is used to display system messages unless a user has chosen another language from those available on the server. us_english always has an ID of NULL. Additional languages are assigned unique numbers as they are added.