How to merge multi-dimensional array into single array in PHP?

Question

I have array which conatins (MANY) assoc arrays with values. I want to merge those nested arrays into single array. I tried call_user_func_array('array_merge', $bigArray), but this will write into same keys, since they are assoc and they repeat. So I need something that ignores array keys and just merges values.

My array:

[
    ['a' => 'aaa', 'b' => 'bbb', 'c' => 'ccc'],
    ['a' => 'ddd', 'b' => 'eee', 'c' => 'fff'],
]

Desired result:

['aaa', 'bbb', 'ccc', 'ddd', 'eee', 'fff']

Welcome to SO! Your question has been already answered before: http://stackoverflow.com/questions/1319903/how-to-flatten-a-multidimensional-array — georg, Jun 24 '14 at 07:50

score 1 · Answer 1 · answered Jun 24 '14 at 07:50

1

$newArr = array();
foreach ($bigArray as $tmp) {
  $newArr = array_merge($newArr, array_values($tmp));
}

// $newArr holds your desired data
print_r($newArr);

answered Jun 24 '14 at 07:50

colburton

4,685
2
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score 0 · Answer 2 · answered Jun 24 '14 at 07:53

0

You can use array_reduce in conjunction with array_values and array_merge:

$result = array_reduce($array, function ($r, $v) {
    return $r = array_merge($r, array_values($v));
});

answered Jun 24 '14 at 07:53

hindmost

7,125
3
27
39

How to merge multi-dimensional array into single array in PHP?

2 Answers2