[impossible_cc]

Can you help me with creating client sided cvar, value from it should be available from another plugin.
I mean value of this cvar can be different for each steamid

For example, default cvar value for each player is 1. If player use sm_whelp, value for his own cvar changes to 0. If use again - change to 1. Server must remember value of this cvar for each steamid.

Or post here some articles that would be useful for me. Thanks.

[shanapu]

not sure what you mean by "creating client sided cvar".
But I think what you need/search for is sql to store client values and natives to share these values with other plugins.

[impossible_cc]

Maybe it would be easier to do it with .inc file.
Couple of plugins on server can display some information, which helps to novice. All I need is create sm_disablehelp and sm_enablehelp command which must work for all plugins. But I'm not sure how to remember this for all plugins.

Thx for answer. I shall read about SQL

[Fyren]

You can use clientprefs to save values per-client.