I need to merge those two arrays:
$ar1 = array("color" => array("red", "green"), "aa");
$ar2 = array("color" => array( "green", "blue"), "bb");
$result = array_merge_recursive($ar1, $ar2);
Expected output:
[
'color' => [
(int) 0 => 'red',
(int) 1 => 'green',
(int) 3 => 'blue'
],
(int) 0 => 'aa',
(int) 1 => 'bb'
]
But it outputs:
[
'color' => [
(int) 0 => 'red',
(int) 1 => 'green',
(int) 2 => 'green', (!)
(int) 3 => 'blue'
],
(int) 0 => 'aa',
(int) 1 => 'bb'
]
I'm looking for the simplest way to do this, my array inputs won't be deeper than those examples.
Here it is.
function array_merge_recursive_ex(array $array1, array $array2)
{
$merged = $array1;
foreach ($array2 as $key => & $value) {
if (is_array($value) && isset($merged[$key]) && is_array($merged[$key])) {
$merged[$key] = array_merge_recursive_ex($merged[$key], $value);
} else if (is_numeric($key)) {
if (!in_array($value, $merged)) {
$merged[] = $value;
}
} else {
$merged[$key] = $value;
}
}
return $merged;
}