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php - Index an array using a callback function to get the key
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Is there a built-in PHP function that does the following?
function array_index(array $values, callable $getKey): array
{
$result = [];
foreach ($values as $value) {
$result[$getKey($value)] = $value;
}
return $result;
}
I think I've reviewed allarray_*() functions, but am surprised that this use case is not covered by any native function.
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Answer
Solution:
There's no built-in function that does this in one step. But you can usearray_map() to get the new keys from the function, andarray_combine() to merge those with the original values to create the associative array.
$result = array_combine(array_map($getKey, $values), $values);
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Link To Answer People are also looking for solutions of the problem: illuminate\http\exceptions\posttoolargeexception
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