PHP code example of stratadox / immutable-collection

1. Go to this page and download the library: Download stratadox/immutable-collection library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

stratadox / immutable-collection example snippets




class Numbers extends ImmutableCollection
{
    public function __construct(int ...$items)
    {
        parent::__construct(...$items);
    }
}




class Things extends ImmutableCollection
{
    public function __construct(Thing ...$things)
    {
        parent::__construct(...$things);
    }
}




class Numbers extends ImmutableCollection implements Appendable
{
    use Appending;

    public function __construct(int ...$items)
    {
        parent::__construct(...$items);
    }
}

$numbers = new Numbers(1, 2, 3);
$numbers = $numbers->add(4);

assert($numbers == new Numbers(1, 2, 3, 4));




class Numbers extends ImmutableCollection implements Mergeable, Purgeable
{
    use Merging, Purging;

    public function __construct(int ...$items)
    {
        parent::__construct(...$items);
    }
}

$numbers = new Numbers(1, 2, 3);
$numbers = $numbers->merge(new Numbers(4, 5, 6));
$numbers = $numbers->remove(3);

assert($numbers == new Numbers(1, 2, 4, 5, 6));




$numbers = (new Numbers(1, 2, 3))
    ->merge(new Numbers(4, 5, 6))
    ->remove(3);

assert($numbers == new Numbers(1, 2, 4, 5, 6));




class Things extends ImmutableCollection
{
    public function __construct(Thing ...$things)
    {
        parent::__construct(...$things);
    }

    public function current(): Thing
    {
        return parent::current();
    }

    public function offsetGet($index): Thing
    {
        return parent::offsetGet($index);
    }
}