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sysatom/php-bloom-filter
========================

A Simple Bloom Filter for PHP

v1.0.1(7y ago)0218MITPHPPHP >=7.1

Since Mar 21Pushed 7y ago1 watchersCompare

[ Source](https://github.com/sysatom/php-bloom-filter)[ Packagist](https://packagist.org/packages/sysatom/php-bloom-filter)[ RSS](/packages/sysatom-php-bloom-filter/feed)WikiDiscussions master Synced 4d ago

READMEChangelogDependencies (2)Versions (3)Used By (0)

A Simple Bloom Filter for PHP
=============================

[](#a-simple-bloom-filter-for-php)

[![Build Status](https://camo.githubusercontent.com/7732dc8b7e4420a50880fc23675913d7362e1be691b52f6cf6d84f0b232cd705/68747470733a2f2f7472617669732d63692e6f72672f73797361746f6d2f7068702d626c6f6f6d2d66696c7465722e7376673f6272616e63683d6d6173746572)](https://travis-ci.org/sysatom/php-bloom-filter)

### Install

[](#install)

```
composer require sysatom/php-bloom-filter
```

### Usage

[](#usage)

```
use \Sysatom\BloomFilter;

$bf = new BloomFilter(100000, 7);

for ($i = 0; $i < 5000; $i++) {
    $bf->add("$i");
}

var_dump($bf->lookup('42'));
var_dump($bf->lookup('100000'));
var_dump($bf->lookup('500001'));
```

### Benchmark

[](#benchmark)

```
$bf = new \Sysatom\BloomFilter(100000, 7);
for ($i = 1; $i add("$i");
}
```

- Total time: 18.4532 s
- Memory Used (current): 636.12 KB
- Memory Used (max): 1.63 MB

### Requirements

[](#requirements)

This project requires PHP 7.1 or newer.

### License

[](#license)

You can find the license for this code in [the LICENSE file](LICENSE).

###  Health Score

26

—

LowBetter than 43% of packages

Maintenance20

Infrequent updates — may be unmaintained

Popularity11

Limited adoption so far

Community7

Small or concentrated contributor base

Maturity56

Maturing project, gaining track record

 Bus Factor1

Top contributor holds 100% 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 ~0 days

Total

2

Last Release

2612d ago

### Community

Maintainers

![](https://www.gravatar.com/avatar/d3b2d4a46392443c892eae0efc800651413b0f2e0cb73692d9d5c523ddc1402e?d=identicon)[sysatom](/maintainers/sysatom)

---

Top Contributors

[![sysatom](https://avatars.githubusercontent.com/u/1270641?v=4)](https://github.com/sysatom "sysatom (6 commits)")

---

Tags

bloom-filtercomposerphpBloom Filterbitmapmurmurhash

###  Code Quality

TestsPHPUnit

### Embed Badge

![Health badge](/badges/sysatom-php-bloom-filter/health.svg)

```
[![Health](https://phpackages.com/badges/sysatom-php-bloom-filter/health.svg)](https://phpackages.com/packages/sysatom-php-bloom-filter)
```

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