Merge two multidimensional arrays and reindex all subarrays - php

Question

I have two arrays, I want to merge these two arrays into single array. Please view the detail below:
First Array:
Array
(
[0] => Array
(
[a] => 1
[b] => 2
[c] => 3
)
[1] => Array
(
[a] => 3
[b] => 2
[c] => 1
)
)
Second Array:
Array
(
[0] => Array
(
[d] => 4
[e] => 5
[f] => 6
)
[1] => Array
(
[d] => 6
[e] => 5
[f] => 4
)
)
I want this result. Does somebody know how to do this?
Array
(
[0] => Array
(
[0] => 1
[1] => 2
[2] => 3
)
[1] => Array
(
[0] => 3
[1] => 2
[2] => 1
)
[2] => Array
(
[0] => 4
[1] => 5
[2] => 6
)
[3] => Array
(
[0] => 6
[1] => 5
[2] => 4
)
)
Hope you have understand the question.
Thank you in advance.

Answer 1

Try array_merge:
$result = array_merge($array1, $array2);

Answer 2

FIXED (again)
function array_merge_to_indexed () {
$result = array();
foreach (func_get_args() as $arg) {
foreach ($arg as $innerArr) {
$result[] = array_values($innerArr);
}
}
return $result;
}
Accepts an unlimited number of input arrays, merges all sub arrays into one container as indexed arrays, and returns the result.
EDIT 03/2014: Improved readability and efficiency

Answer 3

more simple and modern way is:
$merged = $array1 + ['apple' => 10, 'orange' => 20] + ['cherry' => 12, 'grape' => 32];
new array syntax from php 5.4

Answer 4

If you want to return the exact result you specify in your question then something like this will work
function array_merge_no_keys() {
$result = array();
$arrays = func_get_args();
foreach( $arrays as $array ) {
if( is_array( $array ) ) {
foreach( $array as $subArray ) {
$result[] = array_values( $subArray );
}
}
}
return $result;
}

Answer 5

As a purely native function solution, merge the arrays, then reindex each subarray.
Code: (Demo)
$a = [
['a' => 1, 'b' => 2, 'c' => 3],
['a' => 3, 'b' => 2, 'c' => 1],
];
$b = [
['d' => 4, 'e' => 5, 'f' => 6],
['d' => 6, 'e' => 5, 'f' => 4],
];
var_export(
array_map('array_values' array_merge($a, $b))
);
Output:
array (
0 =>
array (
0 => 1,
1 => 2,
2 => 3,
),
1 =>
array (
0 => 3,
1 => 2,
2 => 1,
),
2 =>
array (
0 => 4,
1 => 5,
2 => 6,
),
3 =>
array (
0 => 6,
1 => 5,
2 => 4,
),
)