[mrcoolballs]

create a variable

pawn Код:

new BoughtItem[MAX_PLAYERS];

then when the player buys the item:

pawn Код:

BoughtItem[playerid] = 1;

and then when you want to check if the player has bought the item:

pawn Код:

if(BoughtItem[playerid] == 1)
{
    // do stuff
}
else
{
    //player hasn't bought the item
    return 1;
}