Guide for strtok & strrest.

//ZiPoNz guide for strrest & strtok.

#include <a_samp>

public OnPlayerCommandText(playerid, cmdtext[])
{
    new cmd[128], idx;
    cmd = strtok(cmdtext, idx);

    if(!strcmp(cmd, "/hello", true))
    {
        cmd = strtok(cmdtext, idx);
        if(!strlen(cmd)) return SendClientMessage(playerid, 0xFFFFFF00, "Please write the PlayerID that you want to say Hello!");
        if(!IsPlayerConnected(strval(cmd))) return SendClientMessage(playerid, 0xFFFFFF00, "The player isn't connected.");

        SendClientMessage(strval(cmd), 0xFFFFFF00, "Someone said you Hello!");
        return true;
    }
    if(!strcmp(cmd, "/kick", true))
    {
        new reason[256], message[256], Name[24];
        cmd = strtok(cmdtext, idx);
        if(!strlen(cmd)) return SendClientMessage(playerid, 0xFFFFFF00, "Please write the PlayerID that you want to kick!");
        if(!IsPlayerConnected(strval(cmd))) return SendClientMessage(playerid, 0xFFFFFF00, "The player isn't connected.");
        reason = strrest(cmdtext, idx);
        if(!strlen(reason)) return SendClientMessage(playerid, 0xFFFFFF00, "Please write the reason.");

        GetPlayerName(strval(cmd), Name, 24);
        format(message, 256, "The player %s[%d] kicked from the server, reason: %s.", Name, strval(cmd));
        SendClientMessageToAll(0xFFFFFF00, message);
        Kick(strval(cmd));
        return true;
    }
    return false;
}

strtok(const string[], &index)
{
    new length = strlen(string);
    while ((index < length) && (string[index] <= ' ')) index++;
    new offset = index, result[20];
    while ((index < length) && (string[index] > ' ') && ((index - offset) < (sizeof(result) - 1)))
    {
        result[index - offset] = string[index];
        index++;
    }
    result[index - offset] = EOS;
    return result;
}

stock strrest(const string[], &index)
{
    new length = strlen(string);
    while ((index < length) && (string[index] <= ' '))
    {
        index++;
    }
    new offset = index;
    new result[128];
    while ((index < length) && ((index - offset) < (sizeof(result) - 1)))
    {
        result[index - offset] = string[index];
        index++;
    }
    result[index - offset] = EOS;
    return result;
}