Stringa heredoc: Il mio nome è "Raffale"
a
b
c

Tipi di variabile:
var1=5 is integer
var2=5.34 is double
var3=Ciao is string
var4=1 is boolean

Conversione con settype:
var5=6.35 is double
var5=6.35 is string
var5=6 is integer
var5=6 is double
var5=1 is boolean

Casting:
var5=1 is boolean
var7=6.35 is string
var7=6 is integer
var7=6.35 is double
var7=1 is boolean