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pfinal/sm2-php
==============

Spaced repetition algorithms (SuperMemo algorithm SM-2)

v1.0.0(4y ago)484MITPHPPHP >=5.4

Since Sep 14Pushed 4y ago1 watchersCompare

[ Source](https://github.com/pfinal/sm2-php)[ Packagist](https://packagist.org/packages/pfinal/sm2-php)[ Docs](http://www.pfinal.cn)[ RSS](/packages/pfinal-sm2-php/feed)WikiDiscussions master Synced 3w ago

READMEChangelog (1)Dependencies (1)Versions (2)Used By (0)

SuperMemo2
==========

[](#supermemo2)

A package that implemented the spaced repetition algorithm SM-2 for you to quickly calculate your next review date for whatever you are learning.

```
composer require pfinal/sm2-php

```

###  Health Score

23

—

LowBetter than 26% of packages

Maintenance20

Infrequent updates — may be unmaintained

Popularity13

Limited adoption so far

Community4

Small or concentrated contributor base

Maturity46

Maturing project, gaining track record

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

Unknown

Total

1

Last Release

1753d ago

### Community

Maintainers

![](https://avatars.githubusercontent.com/u/17738136?v=4)[zouyiliang](/maintainers/pfinal)[@pfinal](https://github.com/pfinal)

---

Tags

sm2spaced repetition

### Embed Badge

![Health badge](/badges/pfinal-sm2-php/health.svg)

```
[![Health](https://phpackages.com/badges/pfinal-sm2-php/health.svg)](https://phpackages.com/packages/pfinal-sm2-php)
```

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