[NeXoR]

Hey guys, If im not wrong there's a way which I can turn this from stock to define, so I can save memory
Can you tell me how?
Please try to explain because basically I am supposed to learn something
Thanks in advice

PHP Code:

stock IsAuth(playerid, alevel)
{
    if(aInfo[playerid][aLogged] && aInfo[playerid][aLevel] >= alevel) return 1;
    else return 0;
}