README

code-distortion/array-object-extended provides a substitute ArrayObject class that includes the methods missing from PHP's ArrayObject.

Introduction

PHP has many array functions to manipulate arrays. It also has an ArrayObject which is a class that acts like an array.

However, most of the regular array functions aren't implemented by ArrayObject.

This package offers ArrayObjectExtended which extends from PHP's ArrayObject, and adds many of the missing methods in.

ArrayObjectExtended is not intended to:

• improve the methods or functionality,
• be complete (it adds methods where it makes sense),
• be a Collection class, or
• provide a fluent interface.

It is designed to be faithful to PHP's original method names, parameter usage and return types.

In almost all cases, the only difference between the new class methods and the original is that the $array or $haystack parameter is removed (because the object inherently contains the array, so it doesn't need to be passed).

Installation

Install the package via composer:

composer require code-distortion/array-object-extended

Usage

ArrayObjectExtended acts like PHP's ArrayObject. Instantiate and start using it like normal. e.g.

use CodeDistortion\ArrayObject\ArrayObjectExtended

$myArrayObject = new ArrayObjectExtended(['a', 'b', 'c']);

$myArrayObject->rsort();

foreach ($myArrayObject as $value) {
    print "$value\n";
}

You can extend from ArrayObjectExtended to add in your own functionality.

use ArrayAccess;
use CodeDistortion\ArrayObject\ArrayObjectExtended;
use Countable;
use IteratorAggregate;
use Serializable;

/**
 * @template TKey of integer|string
 * @template TValue of string
 * @template-implements IteratorAggregate<TKey, TValue>
 * @template-implements ArrayAccess<TKey, TValue>
 */
class MyArrayObject extends ArrayObjectExtended implements IteratorAggregate, ArrayAccess, Serializable, Countable
{
    // …
}

Available Methods

append(mixed $value): void
aRSort(int $flags = SORT_REGULAR): bool
aSort(int $flags = SORT_REGULAR): bool
changeKeyCase(int $case = CASE_LOWER): bool
chunk(int $length, bool $preserveKeys = false): array
column(string|int|null $columnKey, string|int|null $indexKey = null): array
//    array_combine() - not planning to implement
//    compact() - not planning to implement
contains(mixed $needle, bool $strict = false): bool // alias for inArray()
count(): int
//    array_count_values() - not implemented
current(): mixed|false
//    array_diff() - not implemented
//    array_diff_assoc() - not implemented
//    array_diff_key() - not implemented
//    array_diff_uassoc() - not implemented
//    array_diff_ukey() - not implemented
//    each() - not planning to implement
end(): mixed|false
exchangeArray(object|array $array): array
//    extract() - not planning to implement
//    array_fill() - not planning to implement
//    array_fill_keys() - not planning to implement
filter(?callable $callback = null, int $mode = 0): array
flip(): array
getArrayCopy(): array
getFlags(): int
getIterator(): Iterator
getIteratorClass(): string
inArray(mixed $needle, bool $strict = false): bool
//    array_intersect() - not implemented
//    array_intersect_assoc() - not implemented
//    array_intersect_key() - not implemented
//    array_intersect_uassoc() - not implemented
//    array_intersect_ukey() - not implemented
isList(): bool
key(): int|string|null
keyExists(mixed $key): bool
keyFirst(): string|int|null
keyLast(): string|int|null
keys(mixed $filterValue = null, bool $strict = false): array
kRSort(int $flags = SORT_REGULAR): bool
kSort(int $flags = SORT_REGULAR): bool
//    list() - not planning to implement
map(?callable $callback): array
max(): mixed
//    array_merge() - not implemented
//    array_merge_recursive() - not implemented
min(): mixed
//    array_multisort() - not implemented
natCaseSort(): bool
natSort(): bool
next(): mixed|false
offsetExists(mixed $key): bool
offsetGet(mixed $key): mixed
offsetSet(mixed $key, mixed $value): void
offsetUnset(mixed $key): void
//    array_pad() - not implemented
pop(): mixed|null
//    pos() - not planning to implement
prev(): mixed|false
//    array_product() - not implemented
push(mixed ...$values): int
rand(int $num = 1): array|string|int
//    range() - not planning to implement
//    array_reduce() - not implemented
//    array_replace() - not implemented
//    array_replace_recursive() - not implemented
reset(): mixed|false
reverse(bool $preserveKeys = false): void
rNatCaseSort(): bool
rNatSort(): bool
rSort(int $flags = SORT_REGULAR): bool
search(mixed $needle, bool $strict = false): string|int|false
serialize(): string
setFlags(int $flags): void
setIteratorClass(string $iteratorClass): void
shift(): mixed
shuffle(): bool
//    sizeof() - not planning to implement
slice(int $offset, ?int $length = null, bool $preserveKeys = false): array
sort(int $flags = SORT_REGULAR): bool
//    array_splice() - not implemented
//    array_sum() - not implemented
uASort(callable $callback): bool
//    array_udiff() - not implemented
//    array_udiff_assoc() - not implemented
//    array_udiff_uassoc() - not implemented
//    array_uintersect() - not implemented
//    array_uintersect_assoc() - not implemented
//    array_uintersect_uassoc() - not implemented
uKSort(callable $callback): bool
unique(int $flags = SORT_STRING): array
unserialize(string $data): void
unshift(mixed ...$values): int
uSort(callable $callback): bool
values(): array
//    array_walk() - not implemented
//    array_walk_recursive() - not implemented

Notes

ArrayObjects have a key TKey and value TValue type. You can define them in your classes when you extend from ArrayObjectExtendend.

For methods like values() and map(..), a key consideration in having them return plain arrays is those key and value type requirements. If they updated the object, or returned new instances of the class, we can't be sure their keys and values would be valid types.

On-Change Hook

Whenever a change is made to the data in an ArrayObjectExtendend instance, it calls onAfterUpdate(). This gives you an opportunity to clear internal caches, etc.

use ArrayAccess;
use CodeDistortion\ArrayObject\ArrayObjectExtended;
use Countable;
use IteratorAggregate;
use Serializable;

/**
 * @template TKey of integer|string
 * @template TValue of string
 * @template-implements IteratorAggregate<TKey, TValue>
 * @template-implements ArrayAccess<TKey, TValue>
 */
class MyArrayObject extends ArrayObjectExtended implements IteratorAggregate, ArrayAccess, Serializable, Countable
{
    /**
     * A hook that's called when the contents of this object has changed.
     *
     * @return void
     */
    protected function onAfterUpdate(): void
    {
        // clear internal caches, etc.
    }
}

$myArrayObject = new MyArrayObject();
// examples of methods that trigger onAfterUpdate()
$myArrayObject->unshift('hi');
$myArrayObject->push('there');
$myArrayObject->rSort();

Testing

composer test

Changelog

Please see CHANGELOG for more information on what has changed recently.

SemVer

This library uses SemVer 2.0.0 versioning. This means that changes to X indicate a breaking change: 0.0.X, 0.X.y, X.y.z. When this library changes to version 1.0.0, 2.0.0 and so forth, it doesn't indicate that it's necessarily a notable release, it simply indicates that the changes were breaking.

Treeware

This package is Treeware. If you use it in production, then we ask that you buy the world a tree to thank us for our work. By contributing to the Treeware forest you’ll be creating employment for local families and restoring wildlife habitats.

Contributing

Please see CONTRIBUTING for details.

Code of Conduct

Please see CODE_OF_CONDUCT for details.

Security

If you discover any security related issues, please email tim@code-distortion.net instead of using the issue tracker.

Credits

• Tim Chandler

License

The MIT License (MIT). Please see License File for more information.