public OnDialogResponse(playerid, dialogid, response, listitem, inputtext[])
{
	if(dialogid == DIALOG_REGISTER) {
		if(strlen(inputtext) == 0) {
			ShowPlayerDialog(playerid, DIALOG_REGISTER, DIALOG_STYLE_PASSWORD, "{FF0000}Register","Introdu o parola ca sa creezi un cont!","Register!","");
		}
		else {
			new EscapedText[60], string[256];
			mysql_real_escape_string(inputtext, EscapedText);
			format(string, sizeof(string), "INSERT INTO `users` (name,password,Level,Money VALUES (`%s`,`%s`,`1`,`15000`)", GetName(playerid), EscapedText[playerid]);
			mysql_query(SQL, string);
			SendClientMessage(playerid, COLOR_INFO, "Ti-ai creet un cont cu succes!");
			GivePlayerMoney(playerid, 15000);
			SetPlayerScore(playerid, 1);
		}
	}
    if(dialogid == DIALOG_LOGIN)
    {
        if(strlen(inputtext) == 0)
        {
			ShowPlayerDialog(playerid, DIALOG_REGISTER, DIALOG_STYLE_PASSWORD, "{FF0000}Register","Introdu o parola ca sa creezi un cont!","Register!","");        }
	    }
        else
        {
            LoginPlayer(playerid, inputtext);
        }
    }
	return 1;
}

stock si forward:

stock ConnectMySQL()
{
	mysql_connect(SQL_HOST,SQL_USER,SQL_DB,SQL_PASS);
	if(mysql_ping() == 1)
	{
		mysql_debug(1);
		printf("[MYSQL]: Connection to `%s` succesful!",SQL_DB);
	}
	else
	{
	  printf("[MYSQL]: [ERROR]: Connection to `%s` failed!",SQL_DB);
	}
	return 1;
}

stock GetName(playerid) {
	new name[MAX_PLAYER_NAME];
	GetPlayerName(playerid, name, sizeof(name));
	return name;
}

stock LoadStats(playerid)
{
	new pName[24],string[128];
	GetPlayerName(playerid,pName,24);
	format(string, sizeof(string), "SELECT * FROM `Users` WHERE `Username` = '%s' ", pName);
	mysql_query(SQL, string);
	mysql_store_result();
	mysql_fetch_row_format(string, "|");
	sscanf(string, "e<p<|>s[24]s[23]i>", PlayerInfo[playerid]);
	mysql_free_result();
	GivePlayerMoney(playerid,PlayerInfo[playerid][pMoney]);
	return 1;
}
forward LoginPlayer(playerid, const password[]);
public LoginPlayer(playerid, const password[])
{
	new EscapedText[60], string[256];
	mysql_real_escape_string(password, EscapedText);
	format(string, sizeof(string), "SELECT * FROM `users` WHERE `name` = '%s' AND `password` = '%s'", GetName(playerid), EscapedText);
	mysql_query(SQL, string);
	mysql_store_result();
	if(mysql_num_rows() != 0)
	{
		SendClientMessage(playerid, COLOR_INFO, "You have been logged in!");
		LoadStats(playerid);
	}
	else
	{
		SendClientMessage(playerid, COLOR_RED, "Wrong password!");
		Kick(playerid);
	}
	mysql_free_result();
	return 1;
}

si la OnPlayerConnect am :

public OnPlayerConnect(playerid)
{
	new string[128], name[MAX_PLAYER_NAME];
	GetPlayerName(playerid, name, sizeof(name));
	format(string, sizeof(string), "SELECT `name` FROM `users` WHERE `name`=`%s` LIMIT 1", name);
	mysql_query(SQL, string);
	if(mysql_num_rows() != 0) {
		format(string,sizeof(string),"Salut %s, contul tau este inregistrat!\nIntrodu parola pentru a continua!", name);
		ShowPlayerDialog(playerid, DIALOG_LOGIN, DIALOG_STYLE_INPUT, "{FF0000}Login", string, "Login","");
	}
	else {
		format(string,sizeof(string),"Salut %s, contul tau nu este inregistrat!\nIntrodu parola pentru a creea un cont!", name);
		ShowPlayerDialog(playerid, DIALOG_REGISTER, DIALOG_STYLE_INPUT, "{FF0000}Register", string, "Register","");
	}
	mysql_free_result();

	InitFly(playerid);
	return 1;
}