TalkPHP - QUIZ: Write a script outputting a multiplication table. No echo, functions etc. used

Hello.

One respected member of russian PHP forum phpclub.ru DiMA posted a good PHP brain-quiz there. I really liked it so much (after I solved it myself, not before :-) ) that I would like to share it with you here.

Write a script, that is printing a multiplication table (example below). The following limitations are implied:

No PHP functions used at all (both built-in and extensions)
No language constructs for outputting data used at all (like echo, print, var_dump, print_r etc (even inside variable functions). Consider they don't exist
No <?= ?> tags used
No HTML, no JavaScript. Consider script is run from console
No file includes used (require, include, readfile etc.)
Simple stupid output of the whole example at once is cosidered stupid and is not considered as solution ;)

You can:

Write your own functions if you like
Use PHP operators and control structures you like

Output example:

Code:

2*2=4

2*3=6

2*4=8

2*5=10

2*6=12

2*7=14

2*8=16

2*9=18

3*2=6

3*3=9

3*4=12

3*5=15

3*6=18

3*7=21

3*8=24

3*9=27

4*2=8

4*3=12

4*4=16

4*5=20

4*6=24

4*7=28

4*8=32

4*9=36

5*2=10

5*3=15

5*4=20

5*5=25

5*6=30

5*7=35

5*8=40

5*9=45

6*2=12

6*3=18

6*4=24

6*5=30

6*6=36

6*7=42

6*8=48

6*9=54

7*2=14

7*3=21

7*4=28

7*5=35

7*6=42

7*7=49

7*8=56

7*9=63

8*2=16

8*3=24

8*4=32

8*5=40

8*6=48

8*7=56

8*8=64

8*9=72

9*2=18

9*3=27

9*4=36

9*5=45

9*6=54

9*7=63

9*8=72

9*9=81

As this forum does not have any HIDE or SPOILER tag, if you solved this puzzle, please, don't post a solution here. Allow others to enjoy beating their brains out ;-)

If you just like to check, if you solved correctly, send me PM with a source.