show distinct result from two array - php

Question

I have the following two arrays...
1) how could i get only the different key->value one?
2) how can i insert to mysql the second array?
// first array
$aa = Array
(
[t_a] => Array
(
[0] => Array
(
[f_c] => LAL
[p_r] => RN
[id] =>
[gender] => m
)
)
[t_b] => Array
(
)
[t_l] => Array
(
[0] => Array
(
[p_lev] => 2
[p_date] =>
[p_r] =>
)
)
[t_r] => Array
(
[0] => Array
(
[I_r] => 19
)
)
// second array
$bb = Array
(
[t_a] => Array
(
[0] => Array
(
[f_c] => NAN
[p_r] => RN
[id] => 1214125
[gender] => m
)
)
[t_b] => Array
(
)
[t_l] => Array
(
[0] => Array
(
[p_lev] => 2
[p_date] => 21
[p_r] => 25
)
)
[t_r] => Array
(
[0] => Array
(
[I_r] => 19
)
)
I have used the array_diff function but i get NULL.
please some one help?

Answer 1

$aa=(array)$aa;
$bb=(array)$bb;
$result=array_diff($aa,$bb);

Answer 2

It's unclear what you want. Please give an example or your desired output. Here's one possibility:
$ser_aa = array_map(function($e){return serialize($e);}, $aa);
$ser_bb = array_map(function($e){return serialize($e);}, $bb);
$diff = array_diff($ser_aa, $ser_bb);
$out = array_map(function($e){return unserialize($e);}, $diff);
print_r($out);
Output:
Array
(
[t_a] => Array
(
[0] => Array
(
[f_c] => LAL
[p_r] => RN
[id] =>
[gender] => m
)
)
[t_l] => Array
(
[0] => Array
(
[p_lev] => 2
[p_date] =>
[p_r] =>
)
)
)