samueldavis/php-pipeline

Compose many callables into a single callable.

1.0.1 2017-07-19 17:18 UTC

Requires

• php: ^7.0

Requires (Dev)

• phpspec/phpspec: ^3.2

MIT

• Samuel Davis

README

Hilarious implementation of chainable callable calls.

https://github.com/thephpleague/pipeline is much more appropriate, but this is pretty cool too. I appreciate how the state isn't obscured because the thing itself is the state.

Example Usage

class Remover
{
    public static function pop(array $arr = [])
    {
        return array_pop($arr);
    }
}

$stringHelper = new class
{
    public function concat(string $initial, string $addition): string
    {
        return $initial . $addition;
    }
};

$explodeCurry = function (string $string) {
    return explode(' ', $string);
};

$explodingPipeline = (new Pipe)
    ->into('strtoupper')
    ->into($explodeCurry);

$getResult = (new Pipe('foo bar'))
    ->into($explodingPipeline)
    ->into([Remover::class, 'pop'])
    ->into([$stringHelper, 'concat'], 'fiz');

var_dump($getResult());
echo "========\n" . json_encode($getResult, JSON_PRETTY_PRINT);

~/code/pipe/example.php:33:
string(6) "BARfiz"
========
{
    "0": "foo bar",
    "1": [
        {
            "0": null,
            "1": [
                "strtoupper"
            ],
            "2": [
                {}
            ]
        }
    ],
    "2": [
        [
            "Remover",
            "pop"
        ]
    ],
    "3": [
        [
            {},
            "concat"
        ],
        "fiz"
    ]
}