Callback OnPlayerCommandText is called when a player enters a command into the client chat window. Commands are anything that start with a forward slash, e.g. /help.
This callback can also be called by NPC.

(playerid, cmdtext[])
int playerid The ID of the player that entered a command.
string cmdtext The command that was entered (including the forward slash).

Return Values:
Return 1 if the command was processed, otherwise 0; If the command was not found both in filterscripts and in gamemode, the player will be received a message: 'SERVER: Unknown command'.
  • It is always called first in filterscripts so returning 1 there blocks other scripts from seeing it.

    if(!strcmp(cmdtext, "/help", true))
        SendClientMessage(playerid, -1, "SERVER: This is the /help command!");
        return 1;
        // Returning 1 informs the server that the command has been processed.
        // OnPlayerCommandText won't be called in other scripts.
    return 0;
    // Returning 0 informs the server that the command hasn't been processed by this script.
    // OnPlayerCommandText will be called in other scripts until one returns 1.
    // If no scripts return 1, the 'SERVER: Unknown Command' message will be shown to the player.

Related Callbacks
The following callbacks might be useful as well, as they are related to this callback in one way or another.

Related Functions
The following functions may be useful, as they are related to this function in one way or another.