<function name="PlayerSay" parent="GM" type="hook"> <ishook>yes</ishook> <description>Called when a player dispatched a chat message. For the clientside equivalent, see <page>GM:OnPlayerChat</page>.</description> <realm>Server</realm> <predicted>No</predicted> <args> <arg name="sender" type="Player">The player which sent the message.</arg> <arg name="text" type="string">The message's content.</arg> <arg name="teamChat" type="boolean">Is team chat?</arg> <arg name="teamChat" type="boolean">Return false when the message is for everyone, true when the message is for the sender's team.</arg> </args> <rets> <ret name="" type="string">What to show instead of original text. Set to `""` to stop the message from displaying.</ret> </rets> </function> <example> <description>Adds a coin flip command to the chat. Player should type `/flip` (case-insensitive).</description> <code> hook.Add( "PlayerSay", "CoinFlip", function( ply, text ) if ( string.lower( text ) == "/flip" ) then PrintMessage( HUD_PRINTTALK, ply:Nick() .. " flipped the coin and got " .. ( math.random( 2 ) == 1 and "heads" or "tails" ) ) return "" end end ) </code> <output> ``` Player1 flipped the coin and got heads ``` </output> </example> <example> <description>Adds a symbol counter command to the chat. Player should type `/len *text*` (case-insensitive).</description> <code> hook.Add( "PlayerSay", "CharCount", function( ply, text ) if ( string.StartWith( string.lower( text ), "/len " ) ) then ply:ChatPrint( "Your message has " .. utf8.len( string.sub( text, 6 ) ) .. " symbol(s)." ) -- We use 6 in string.sub because it's a length of "/len " + 1 return "" end end ) </code> <output> ``` Your message has 5 symbol(s). [When someone typed: "/len Hello"] ``` </output> </example>