Function GetPVarInt gets an integer player variable's value.
Variables aren't reset until after OnPlayerDisconnect is called, so the values are still accessible in OnPlayerDisconnect.

(playerid, varname[])
int playerid The ID of the player whose player variable to get.
string varname The name of the player variable (case-insensitive). Assigned in SetPVarInt.

Return Values:
The integer value of the specified player variable. It will still return 0 if the variable is not set, or the player does not exist.

public OnPlayerDisconnect(playerid,reason)
    printf("money: %d", GetPVarInt(playerid, "money")); // get the saved value ('money')
    // will print 'money: amount'
    return 1;

Related Functions
The following functions may be useful, as they are related to this function in one way or another.