He basically just did.
PHP Code:
new Float:gfVariable[33/MAX_PLAYERS+1] //this is your variable
PHP Code:
public handleMenublabla(id, menu, item)
{
blablabla...
switch(key)
{
case 1:
{
if (gfVariable[id] < get_gametime())
{
blablabla
gfVariable[id] = get_gametime()+300.0
}
else {
blabla