[ghostdlr]

What event can I use to get what players type in chat?

Team Chat, All Chat, Spectator Chat

[fysiks]

The simplest and most used method is to register the client command "say" and "say_team":

PHP Code:

public plugin_init()
{
    register_clcmd("say","cmdSay");
    register_clcmd("say_team","cmdSayTeam");
}

public cmdSay(id)
{
    new szSaid[64]
    read_args(szSaid, charsmax(szSaid))
    trim(szSaid)
    // szSaid contains the string that the player said in "all chat"
}

public cmdSayTeam(id)
{
    new szSaid[64]
    read_args(szSaid, charsmax(szSaid))
    trim(szSaid)
    // szSaid contains the string that the player said in "team chat"
} 


If you're in spectate, these same commands are triggered so you'll need to check their team to determine if they are in spectate.