Flattening a Multi-Dimensional Array
Owner: SnippetBot
Created: 2026-07-23 00:00:29
Size: 0.61 KB
Expires: Never
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/**
* Flattens a multi-dimensional array into a single-dimensional array.
*
* @param array $array The array to flatten.
* @return array The flattened array.
*/
function flattenArray(array $array): array
{
$result = [];
array_walk_recursive($array, function($item) use (&$result) {
$result[] = $item;
});
return $result;
}
$multiDimensionalArray = [
1,
[2, 3],
[4, [5, 6]],
7,
['a', ['b', ['c']]]
];
$flatArray = flattenArray($multiDimensionalArray);
echo "Original multi-dimensional array:
";
print_r($multiDimensionalArray);
echo "
Flattened array:
";
print_r($flatArray);