[SOLVED] Array Question

[michaelslamet]

Hi,

Let say I have a array. I want only array content that begin with XX and length less than 6.

Example: current array is:

$current_array[0] = "AB1234"

$current_array[1] = "XX11"

$current_array[2] = "XX1234567"

$current_array[3] = "XX123"

$current_array[4] = "XA1234"

New array should be:

$new_array[0] = "XX11"

$new_array[1] = "XX123"

which is begin with XX and less than 6 in length.

Any build-in function to do this?

Thanks a lot

Edited March 17, 2011 by michaelslamet

[hannes08]

Hi michaelslamet,

I don't know any builtin function,

you'll need to do it this way:

$new_array = $current_array

For $i = Ubound($new_array) -1 To 0 Step -1
    If Stringleft($new_array[$i],2) <> "XX" Or StringLen($new_array[$i]) >= 6 Then
        _ArrayDelete($new_array,$i)
    EndIf
Next

[michaelslamet]

Thanks Hannes

Why we should use descending for?

Just wonder, instead of For $i = Ubound($new_array) -1 To 0 Step -1

can we use For $i = 1 to Ubound($new_array) - 1

?

[hannes08]

Hi michaelslamet,

if you use _ArrayDelete() it decreases the indexes:

$a[0] = 1
$a[1] = 2
$a[2] = 3

_ArrayDelete($a, 1)

$a[0] = 1
$a[1] = 3

If you use this in a loop you will throw an exception like array out of bounds. That's why going backwards.

[michaelslamet]

ok, understand. Implement this into my code successfully.

Thanks a lot, Hannes