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ActiveLibrary[Utility & Helpers](/categories/utility)

redlock/redlock
===============

Redis distributed locks in PHP

1.0.0(6y ago)68.4k↓100%MITPHPPHP >= 7.0

Since Mar 20Pushed 4y agoCompare

[ Source](https://github.com/adhocore/php-redlock)[ Packagist](https://packagist.org/packages/redlock/redlock)[ RSS](/packages/redlock-redlock/feed)WikiDiscussions master Synced 1mo ago

READMEChangelogDependenciesVersions (2)Used By (0)

php-redlock
-----------

[](#php-redlock)

> Redis distributed locks in PHP

Forked from [Redlock-php](https://github.com/ronnylt/redlock-php) by [Ronny López](https://github.com/ronnylt)

Based on [Redlock-rb](https://github.com/antirez/redlock-rb) by [Salvatore Sanfilippo](https://github.com/antirez)

This library implements the Redis-based distributed lock manager algorithm [described in this blog post](http://antirez.com/news/77).

Install
-------

[](#install)

```
composer require redlock/redlock
```

Usage
-----

[](#usage)

To create a lock manager:

```
use RedLock\RedLock;

$servers = [
    ['127.0.0.1', 6379, 0.01, 1], // last param is dbindex (0-15)
    ['127.0.0.1', 6389, 0.01],
    ['127.0.0.1', 6399, 0.01],
];

$redLock = new RedLock($servers);
```

To acquire a lock:

```
$lock = $redLock->lock('my_resource_name', 1000);
```

Where the resource name is an unique identifier of what you are trying to lock and 1000 is the number of milliseconds for the validity time.

The returned value is `false` if the lock was not acquired (you may try again), otherwise an array representing the lock is returned, having three keys:

```
Array
(
    [validity] => 9897.3020019531
    [resource] => my_resource_name
    [token] => 53771bfa1e775
)
```

- *validity*, an integer representing the number of milliseconds the lock will be valid.
- *resource*, the name of the locked resource as specified by the user.
- *token*, a random token value which is used to safe reclaim the lock.

To release a lock:

```
$redLock->unlock($lock)
```

It is possible to setup the number of retries (by default 3) and the retry delay (by default 200 milliseconds) used to acquire the lock.

The retry delay is actually chosen at random between `$retryDelay / 2` milliseconds and the specified `$retryDelay` value.

**Disclaimer**: As stated in the original antirez's version, this code implements an algorithm which is currently a proposal, it was not formally analyzed. Make sure to understand how it works before using it in your production environments.

###  Health Score

30

—

LowBetter than 64% of packages

Maintenance20

Infrequent updates — may be unmaintained

Popularity26

Limited adoption so far

Community11

Small or concentrated contributor base

Maturity51

Maturing project, gaining track record

 Bus Factor2

2 contributors hold 50%+ of commits

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

2250d ago

### Community

Maintainers

![](https://avatars.githubusercontent.com/u/2908547?v=4)[Jitendra Adhikari](/maintainers/adhocore)[@adhocore](https://github.com/adhocore)

---

Top Contributors

[![ronnylt](https://avatars.githubusercontent.com/u/24546?v=4)](https://github.com/ronnylt "ronnylt (3 commits)")[![adhocore](https://avatars.githubusercontent.com/u/2908547?v=4)](https://github.com/adhocore "adhocore (2 commits)")[![joni2back](https://avatars.githubusercontent.com/u/2049935?v=4)](https://github.com/joni2back "joni2back (1 commits)")[![sp-ronny-lopez](https://avatars.githubusercontent.com/u/6653187?v=4)](https://github.com/sp-ronny-lopez "sp-ronny-lopez (1 commits)")[![zeroasterisk](https://avatars.githubusercontent.com/u/23422?v=4)](https://github.com/zeroasterisk "zeroasterisk (1 commits)")

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```

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