Sting data type qustion

Question

Plese see below qustion and tell true or falls

1)..
$x = ' This is text ' ; (TRUE or FALSE)

2)..
$x = " This is text " ; (TRUE or FALSE)

3)...
$x = " 1.2.3.4.5 6 7 " ; (TRUE or FALSE)

4)...
$x = '-1. -2.-3.-4' ; (TRUE or FALSE)

5)...
$x = '12345678' ; (TRUE or FALSE)

plese say which is true or false

Answer 1

if you mean all are string, all are true

Answer 2

i think 2 is right. because quotes for strings.

Answer 3

all are strings. hence all are true