Help with arrays

[rfeio]

Hi!

 

I have this script that generates a multiple array: 

array[x][y]

 

Depending on the user input the array can be 'x' can be 1 or more.

 

I want to use the array[x] with the array_intersect as in

array_intersect($array[0], $array[1], ...)

 

So I thought of doing:

 

        for($k=0; $k < count($array); $k++)
         {
             $temp .= '$array['.$k.'],';
         }

 

and then issuing:

 

      array_intersect($temp) but obviously it doesn't work.

 

So my question is, how can I do this?

 

Cheers!

[rfeio]

Just to explain the objective of this exercise:

 

The idea is to check the values that are common to all the arrays.

 

For example let's suppose that:

 

array[1] has the values (a, b, c, d, e)

 

array[2] has the values (a, e, f, g, h)

 

array[3] has the values (e, f, g, h, k)

 

The end result should be 'e' which is common to all the 3 arrays.

 

Now one of the challenges is that I don't know how many arrays I will have in the beginning. In this example it was 3, but it can be more or less then that.

 

Any ideas?

[RichardRotterdam]

There is prob more then one way to solve this but here is an idea.

Why not put all the values in one array and use array_unique to remove the duplicate values.

That way you have all possible values stored in 1 array. Then do a check for each possible value if it exists in all the arrays you want to check

[ignace]

Try Dj Kat's solution or try call_user_func_array

[rfeio]

Yeap, DJ Kat's solution seems a good one.

 

Now, how can I solve my other problem? I don't know how many arrays I have to begin with in order to merge them in one single array.

 

My idea was to create a variable with the arguments for the array_merge() function like:

 

for($i=0; $i < $max_num_arrays; $i++)

{

  $arguments .= '$array['.$i.'],';

}

 

and then: array_merge($arguments)

 

But this doen's work because $arguments is a string and not an array.

 

Any ideas?

 

 

[rfeio]

Hummmm... I think I know how to solve this:

 

$merge = array();

 

for ($i=0; $i < $max_num_arrays; $i++)

{

    $merge = array_merge($merge, $array[$i]);

 

}