head from foo

All values should be undefined: $a =
$b =
$c =
$d =
$e =
First of all assign a value:
Now we have some 'Umlaute': Now lets look what we are getting from this:
(this is the value in $a) (this is the value in $a) äöü
And now a and b together: (this is the value in $a)(this is the value in $a) äöü

Here we have some HTML tags within the perl code, Embperl will delete them!
57 Embperl will also translate HMTL escapes to the right characters i.e. $a &lt; 6 will get the perl expression $a < 6:
1 Now they should have a value $a = (this is the value in $a)
$b = (this is the value in $a) äöü
$c = 57
$d = 1
$e = 2
a
a
a
b is null
a
b is null
a
b is null

$tabmode = default

Display an two dimensional array with one, two and three columns !
Please take a look at the source in your browser to see the difference
$a[0][0] = '1/1' ;
$a[1][0] = '2/1' ;
$a[1][1] = '2/2' ;
$a[2][0] = '3/1' ;
$a[2][1] = '3/2' ;
$a[2][2] = '3/3' ;

$tabmode = default

a1/1
a2/1	a2/2
a3/1	a3/2	a3/3

a1/1
a2/1	a2/2
a3/1	a3/2	a3/3

a1/1
a2/1	a2/2
a3/1	a3/2	a3/3

b1/1 b2/1 b2/2 b3/1 b3/2 b3/3 a1/1
b1/1 b2/1 b2/2 b3/1 b3/2 b3/3 a2/1	b1/1 b2/1 b2/2 b3/1 b3/2 b3/3 a2/2
b1/1 b2/1 b2/2 b3/1 b3/2 b3/3 a3/1	b1/1 b2/1 b2/2 b3/1 b3/2 b3/3 a3/2	b1/1 b2/1 b2/2 b3/1 b3/2 b3/3 a3/3

^

(2\.0.*?|1\.3.*?)

17

1

0 1 2 A = 1
B = 2
C = 3
@a[0] = a
@a[1] = b
@a[2] = c
@a[3] = d
@a[0] = a
@a[1] = b
@a[2] = c
@a[3] = d
a
b
c
d
1
3
5
7
9
1
2
3
4
5
6
7
8
9
10
2:1
2:2
2:3
2:4
2:5
3:a
3:b
3:c
@a[0] = a
A = 1
1
3
5
7
9
B = 2
1
3
5
7
9
C = 3
1
3
5
7
9
@a[1] = b
A = 1
1
3
5
7
9
B = 2
1
3
5
7
9
C = 3
1
3
5
7
9
@a[2] = c
A = 1
1
3
5
7
9
B = 2
1
3
5
7
9
C = 3
1
3
5
7
9
@a[3] = d
A = 1
1
3
5
7
9
B = 2
1
3
5
7
9
C = 3
1
3
5
7
9
x y

ii[0] = 0

ii[1] = 1

ii[2] = 2

ii[3] = 3

ii[4] = 4

ii[5] = 5

ii[6] = 6

ii[7] = 7

ii[8] = 8

ii[9] = 9