vectorial1024 / alof-lib
PHP array-like object functions library.
Requires
- php: ^8.1
Requires (Dev)
- phpunit/phpunit: ^10
Suggests
- vectorial1024/transmutation: A "collections"-like library for array-like objects.
This package is auto-updated.
Last update: 2024-11-05 08:05:40 UTC
README
(This is a WIP project!)
PHP array-like object functions library ("alof-lib"). Type-hinted functions for array-like objects, just like those for native arrays. Think of this library as a polyfill of those useful functions for array-like objects, so that you may write clean code with array-like objects.
An array-like object ("ALO") is defined to be implements ArrayAccess
and implements Traversable
. Examples include:
- ArrayObject (since PHP 5)
- ArrayIterator (since PHP 5)
- SplObjectStorage (since PHP 5.1)
- SplDoublyLinkedList (since PHP 5.3)
- SplFixedArray (since PHP 5.3)
- SplStack (since PHP 5.3)
- SplQueue (since PHP 5.3)
- WeakMap (since PHP 8)
- ... and perhaps more
A PHP array
is NOT an ALO. It is still an array.
Latest version requires PHP 8.1+.
See the change log in the CHANGELOG.md
file.
Want to easily process ALOs? See vectorial1024/transmutation
here.
Notes and Disclaimers
- ALO functions aim to be faithful user-land reproductions of their array function counterparts, but there might be slight differences between both sides
- Some ALO functions may not make sense depending on your exact ALO implementation; use judgement before you use the ALO functions
Installation
via Composer:
composer require vectorial1024/alof_lib
Testing
This library uses PHPUnit for testing, which can be triggered from Composer. To test this library, run:
composer run-script test
Example Usage
Refer to the test cases under /tests
for more examples, but for a minimal example:
use Vectorial1024\AlofLib\Alof; $objKey = new stdClass(); $objKey->name = "foo"; // conveniently get the keys of the WeakMap (WeakMap becomes a "WeakHashSet" for objects) $map = new WeakMap(); $map[$objKey] = "1"; $map[$objKey] = 2; $map[$objKey] = "Hello World!"; $keys = Alof::alo_keys($map); assert($keys === [$objKey]); // passes // correctly get the keys of the SplObjectStorage (no more nasty foreach surprises!) $splObjectStore = new SplObjectStorage(); $splObjectStore[$objKey] = "Hello World!"; $keys = Alof::alo_keys($splObjectStore); assert($keys === [$objKey]); // passes
Relationship with transmutation
This library does the dirty work and ensures the correctness of ALO functions, while transmutation
provides an easy-to-use API for ALO processing.