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 < 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 | 
| 
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| 
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| 
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3.0
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 |