public OnPlayerCommandText(playerid, cmdtext[])
{
    if (zcmd_g_HasOPCS && !CallLocalFunction("OnPlayerCommandReceived", "is", playerid, cmdtext))
    {
        return 1;
    }
    new
        pos,
        funcname[MAX_FUNC_NAME];
    while (cmdtext[++pos] > ' ') 
    {
        funcname[pos-1] = tolower(cmdtext[pos]); 
    }
    format(funcname, sizeof(funcname), "cmd_%s", funcname);
    while (cmdtext[pos] == ' ') pos++;
    if (!cmdtext[pos])
    {
        if (zcmd_g_HasOPCE)
        {
            return CallLocalFunction("OnPlayerCommandPerformed", "isi", playerid, cmdtext, CallLocalFunction(funcname, "is", playerid, "\1"));
        }
        return CallLocalFunction(funcname, "is", playerid, "\1");   
    }
    if (zcmd_g_HasOPCE)
    {
        return CallLocalFunction("OnPlayerCommandPerformed", "isi", playerid, cmdtext, CallLocalFunction(funcname, "is", playerid, cmdtext[pos]));
    }
    return CallLocalFunction(funcname, "is", playerid, cmdtext[pos]);
}