https://forums.alliedmods.net/showthread.php?t=137514

Cvars:
amx_log_type_data 3 //
0 - Logs disabled
1 - Logging only connect
2 - Logging only disconnect
3 - Logging both
amx_log_connnect_type 1 //
0 - Logs dissabled
1 - Log when conneced to server
2 - Log when connecting to server
amx_log_info_chat 1 // Information about connect will be shown in chat. 1 - on / 0 - off
amx_log_chat_sound 1 // Playing sound on connect
amx_log_data abcd // Saving information (in logs)
amx_log_chat_data abcd // Showing information in chat
a - Nickname
b - IP
c - SteamID
d - Country
amx_log_console 0 // Connects data will be shown in console
amx_log_dubbing 0 // Data in log filles will not be repeating if this cvar on.
amx_log_chat 3 // Chat logging
0 - Off
1 - Logging only say
2 - Logging only say_team
3 - Logging all
amx_log_chat_dubbing 1 // Will not repeat equal messages in log files if on
amx_log_delete_days 7 // Cvar deleting old log files. Specify what old they should be to delete (in days).
amx_log_player_flag 0 // Specify the flag (from users.ini file) if you want, that only players with that flag will be logged (example - admins).
amx_log_separate_by_flag 0 // If you turn on this flag plugin will log flagged players to one directory and other players to other (directories are in .sma file)
amx_log_bots 0 // Enable/Disable bots logging.