[12.x] Add recursive map helper #57739
Closed
+145
−0
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Contributor
|
Theoretically, one could alternatively alter the existing /**
* Run a map over each of the items in the array.
*
* @param array $array
* @param callable $callback
* @return array
*/
public static function map(array $array, callable $callback)
{
$keys = array_keys($array);
try {
- $items = array_map($callback, $array, $keys);
+ $items = array_map(fn ($value, $key) => $callback($value, $key, fn (array $array, ? callable $fn = null) => self::map($array, $fn ?? $callback)), $array, $keys);
} catch (ArgumentCountError) {
- $items = array_map($callback, $array);
+ $items = array_map(fn ($value) => $callback($value, fn (array $array, ? callable $fn = null) => self::map($array, $fn ?? $callback)), $array);
}
return array_combine($keys, $items);
}Arr::map(
['foo' => 'bar', 'baz' => ['lorem' => 'ipsum'],
fn ($value, $key, $fn) => is_scalar($value)
? $key . ': ' . $value
: $key . ': ' . $fn($value),
);Another alternative would be to introduce a |
Member
|
Thanks for your pull request to Laravel! Unfortunately, I'm going to delay merging this code for now. To preserve our ability to adequately maintain the framework, we need to be very careful regarding the amount of code we include. If applicable, please consider releasing your code as a package so that the community can still take advantage of your contributions! |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This pull request introduces a new static method, mapRecursive, to extend Laravel’s array utilities. The method enables applying a callback function recursively across deeply nested data structures such as arrays, Arrayable, Enumerable, Traversable, Jsonable, and JsonSerializable objects.
Key Features
Recursive mapping: Handles multi-level data structures without manual flattening.
Broad compatibility: Supports Laravel’s common collection and arrayable interfaces, as well as native traversable types.
Flexible callback: Gracefully handles callbacks that accept either one or two parameters (value and key).
Optional key preservation: Allows preserving original keys or reindexing results.
Example Usage
Benefits
Simplifies recursive transformations without additional loops.
Improves code readability for deeply nested array processing.
Extends Laravel’s array manipulation capabilities in a backward-compatible way.