adding rows and colums to a two dimentional array

[stijn0713]

what's the best way/ which functions to use to easily add rows and colums to an existing array (matrix)?

 

th in adv!

 

[PravinS]

try using array_push()

[stijn0713]

mmm that doesnt really help

 

[ManiacDan]

So then...explain better.  There are dozens of ways to add things to an array.  The three most common:

 

$arr[] = $something;

array_push($arr, $something);

array_unshift($arr, $something);

 

If those don't fit your requirements, refine the requirements.

[stijn0713]

Ok. This is my two dimentional array:

 

Array ( [0] => Array ( [0] => 21 [1] => 24 [2] => 18 [3] => 1 [4] => 0 [5] => 0 [6] => 0 ) [1] => Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 0 [4] => 1 [5] => 0 [6] => 0 ) [2] => Array ( [0] => 24 [1] => 29 [2] => 32 [3] => 0 [4] => 0 [5] => 1 [6] => 0 ) [3] => Array ( [0] => -1 [1] => -1 [2] => 2 [3] => 0 [4] => 0 [5] => 0 [6] => 1 ) )

 

which corresponds to this matrix:

 

21 24 18 1 0 0 0

01 02 03 0 1 0 0

24 29 32 0 0 1 0

-1 -1  02 0 0 0 1

 

Which is indexed as:

 

00 01 02 03 04 05 06

10 11 ....

20 21 ...

 

etc.

 

Now i need to add this array (x1 => 7500, x2 => 8200, x3 => 10500, t1 => 0, t2 =>0, t3 => 0, t4 => 0) so that my matrix will be:

 

7500 8200 10500 0 0 0 0

x1 x2 x3 t1 t2 t3 t4

21 24 18 1 0 0 0

1 2 3 0 1 0 0

24 29 32 0 0 1 0

-1 -1 2 0 0 0 1

 

So in fact i need to add the values or the keys of an array into a row of a two dimentional array...

 

Hope it clears things out

[Jessica]

That made me dizzy.

[Mahngiel]

Foremost, Arrays do not have rows and columns.  They have keys and values.

 

Array ( 
    [0] => Array ( 
        [0] => 21   [1] => 24 [2] => 18  3] => 1  [4] => 0 5] => 0 [6] => 0 
    ) 
    [1] => Array ( 
        [0] => 1 [1] => 2 [2] => 3[3] => 0 [4] => 1[5] => 0  [6] => 0 
    ) 
    [2] => Array ( 
        [0] => 24  [1] => 29 [2] => 32  [3] => 0  [4] => 0 [5] => 1 [6] => 0
    ) 
    [3] => Array ( 
        [0] => -1 [1] => -1 [2] => 2 [3] => 0 [4] => 0 [5] => 0 [6] => 1 
    )
)

Now i need to add this array (x1 => 7500, x2 => 8200, x3 => 10500, t1 => 0, t2 =>0, t3 => 0, t4 => 0) so that my matrix will be:

 

7500  8200  10500  0  0  0  0

x1  x2  x3  t1  t2  t3  t4

 

Are the x#'s supposed to be keys or values?  You show them both ways.