I have 2 arrays that I want to compare. On side A, it contains IPtables rules split up in separate columns. Example output array A;
Array
(
[0] => Array
(
[num] => 1
[pkts] => 0
[bytes] => 0
[target] => DROP
[prot] => all
[opt] => --
[in] => *
[out] => *
[source] => 192.168.0.1/32
[destination] => 192.168.0.2/32
)
On side B, I also have an array. However, this one has a slight difference.
[1] => Array
(
[num] => 2
[pkts] => 0
[bytes] => 0
[target] => DROP
[prot] => all
[opt] => --
[in] => *
[out] => *
[source] => 192.168.5.5/32
[destination] => 192.168.6.6/32
[id] => 7
)
As you can see, Array B has another column. Column ID.
What I want to do is, compare these two from the eyes of A.
So,
A-->B then I want to output the difference.
In the field I have array A filled with 3 rules, and Array B for example 4 rules.
Array A needs to look at Array B, then output what is not in there.
Array B needs to be a exact copy of Array A, so to speak.
What I've tried, is to use array_diff. However, I've found out that that doesn't work since there's an ID column in array B, always being the difference.
So essentially what I'm looking for is a modified array_diff that doesn't look at the ID column in Array B... how to achieve this?
As already mentioned, you could either unset the id from the inner array via unset or write your own comparison function via array_diff_uassoc: