string vs array manipulation

[choubix]

hello,

I.
I have converted this: 040825444547
into this: Array ( [0] => 04 [1] => 08 [2] => 25 [3] => 44 [4] => 45 [5] => 47 )

II.
and this: 021319212542122022303142
into this: Array ( [0] => 021319212542 [1] => 122022303142 )

i need to compare the arrays. i thought of using array_diff() for that (I need to know how many person have 1 number, 2 numbers... 6 numbers and then return their ID)

but I have been combining the following functions to get I and II to have the same format without success:

implode()
chunk_split()
str_split()
strtok()
array_chunk()

dont seem to find the right combination...
can anyone tell me the logic? how to make the 2 set of datas compatible for a comparison? (II. comes from a loop)

maybe it would be easier to compare the strings and not the arrays??? (as I have the string stored in my database...)

thx 🙂

[bpat1434]

Which way are you trying to go? XX vs XX or XXXXXX vs XXXXXX? There's a difference.

1.) If you're testing XXXXXX vs XXXXXX then when you get the strings from the database, instead of breaking up by groups of 2, just break it up by groups of 6:

$tmp_1 = chunk_split($string, 6);

[mikell]

I.
Describe the data you are working with.
- What is a "number"?
- Are all "numbers" the same number of digits?
- ...etc

II.
Explain what you are ultimately trying to do.