#Collection (PHPExtra\Type\Collection)

##Usage

Collection solve few things by implementing following interfaces: \Countable, \ArrayAccess, \Iterator, and \SortableInterface. This gives you an ability to count() collection, use a foreach on it, access it like an array $a[1] and sort its contents $a->sort($sorter). Apart from regular collections there are also LazyCollection's that allow you to specify a closure that will initialize collection contents only if it's needed.

Create your first collection:

$collection = new Collection();

$collection->add('item1');
$collection->add('item2');
$collection->add('item3');

Use it:

echo count($collection); // returns 3
echo $collection[0]; // returns "item1"
echo $collection->slice(1, 2); // returns Collection with a length of 2 containing item2 and item3.
echo $collection->filter(function($element, $offset){ return $offset % 2 == 0; }); // returns sub-collection with all elements with even offset number
$collection->sort(SorterInterface $sorter); // sorts collection

Lazy collection example:

$lazy = new LazyCollection(function(){
    return new Collection(array(1, 2, 3));
});

echo $lazy[2]; // initializes the closure and returns "3"

Installation (Composer)

{
    "require": {
        "phpextra/collection":"~1.0"
    }
}

##Changelog

No releases yet

##Contributing

All code contributions must go through a pull request. Fork the project, create a feature branch, and send me a pull request. To ensure a consistent code base, you should make sure the code follows the coding standards. If you would like to help take a look at the list of issues.

##Requirements

See composer.json for a full list of dependencies.

##Authors

Jacek Kobus - <[email protected]>

License information

See the file LICENSE.txt for copying permission.on.