$bool
=
false
#1
|
ctype_digit
|
("1820.20")
|
#2
|
ctype_digit
|
("10002")
|
#3
|
ctype_digit
|
("wsl!12")
|
#4
|
ctype_digit
|
("42")
|
#5
|
ctype_digit
|
(42)
|