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bentools/rewindable-generator
=============================

Now your generators become rewindable.

1.2(2y ago)4329↓85.7%1MITPHPPHP >=8.1

Since Apr 26Pushed 2y ago1 watchersCompare

[ Source](https://github.com/bpolaszek/rewindable-generator)[ Packagist](https://packagist.org/packages/bentools/rewindable-generator)[ RSS](/packages/bentools-rewindable-generator/feed)WikiDiscussions master Synced yesterday

READMEChangelog (2)Dependencies (6)Versions (5)Used By (0)

[![Latest Stable Version](https://camo.githubusercontent.com/2a63f76e40defe7ea2ba49257052923f0be83df96262a7cd978235509d93798e/68747470733a2f2f706f7365722e707567782e6f72672f62656e746f6f6c732f726577696e6461626c652d67656e657261746f722f762f737461626c65)](https://packagist.org/packages/bentools/rewindable-generator)[![License](https://camo.githubusercontent.com/5403b74116e5a3e435c28c43c62761b994500da60213cfc208ab22a06c4cee71/68747470733a2f2f706f7365722e707567782e6f72672f62656e746f6f6c732f726577696e6461626c652d67656e657261746f722f6c6963656e7365)](https://packagist.org/packages/bentools/rewindable-generator)[![CI Workflow](https://github.com/bpolaszek/rewindable-generator/actions/workflows/ci.yml/badge.svg)](https://github.com/bpolaszek/rewindable-generator/actions/workflows/ci.yml)[![Coverage](https://camo.githubusercontent.com/e829111600c46a9870fcf5dd9a7ad33e8d83ee1814bc7aa52d691a45d4258a4a/68747470733a2f2f636f6465636f762e696f2f67682f62706f6c61737a656b2f726577696e6461626c652d67656e657261746f722f6272616e63682f6d61696e2f67726170682f62616467652e7376673f746f6b656e3d4c35756c5461796d6274)](https://codecov.io/gh/bpolaszek/rewindable-generator)[![Total Downloads](https://camo.githubusercontent.com/61b8676659d983c6b455ed5e39bd8ce086d4a8e5885a1d56d7eb881a0aac0117/68747470733a2f2f706f7365722e707567782e6f72672f62656e746f6f6c732f726577696e6461626c652d67656e657261746f722f646f776e6c6f616473)](https://packagist.org/packages/bentools/rewindable-generator)

Rewindable generator
====================

[](#rewindable-generator)

```
$generator = (function () {
    yield 'foo';
    yield 'bar';
})();

var_dump(iterator_to_array($generator)); // ['foo', 'bar']
var_dump(iterator_to_array($generator)); // Boom
```

> PHP Fatal error: Uncaught Exception: Cannot traverse an already closed generator

Yes, I know. That's annoying. But here's a tiny class which will leverage a `CachingIterator` to make your generator rewindable.

Simple as:

```
use BenTools\RewindableGenerator;

$generator = (function () {
    yield 'foo';
    yield 'bar';
})();

$iterator = new RewindableGenerator($generator);

var_dump(iterator_to_array($iterator)); // ['foo', 'bar']
var_dump(iterator_to_array($iterator)); // ['foo', 'bar']
```

**Warning:** An exception will be thrown if you intend to rewind a generator which has not reached the end (i.e you `break`the loop), since the `CachingIterator` won't have all items in cache.

Installation
------------

[](#installation)

> composer require bentools/rewindable-generator

Tests
-----

[](#tests)

> ./vendor/bin/phpunit

###  Health Score

34

—

LowBetter than 75% of packages

Maintenance20

Infrequent updates — may be unmaintained

Popularity17

Limited adoption so far

Community10

Small or concentrated contributor base

Maturity75

Established project with proven stability

 Bus Factor1

Top contributor holds 50% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Every ~689 days

Total

4

Last Release

920d ago

PHP version history (2 changes)1.0PHP >=5.5

1.1PHP >=8.1

### Community

Maintainers

![](https://www.gravatar.com/avatar/acdd1a8ee0e657ddd06cf11f98a32100ef7121afb8aa270a5b295f5c29c038b3?d=identicon)[bpolaszek](/maintainers/bpolaszek)

---

Top Contributors

[![bpolaszek](https://avatars.githubusercontent.com/u/5569077?v=4)](https://github.com/bpolaszek "bpolaszek (3 commits)")[![simPod](https://avatars.githubusercontent.com/u/327717?v=4)](https://github.com/simPod "simPod (3 commits)")

---

Tags

generatoriteratorgeneratorsrewindable

###  Code Quality

TestsPest

Static AnalysisPHPStan

Code StylePHP CS Fixer

Type Coverage Yes

### Embed Badge

![Health badge](/badges/bentools-rewindable-generator/health.svg)

```
[![Health](https://phpackages.com/badges/bentools-rewindable-generator/health.svg)](https://phpackages.com/packages/bentools-rewindable-generator)
```

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