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awesome/simdutf
===============

Unicode (UTF8, UTF16, UTF32) and Base64 processing at billions of characters per second in PHP using the simdutf library.

1.0.0(1y ago)08[1 issues](https://github.com/awesomized/simdutf-php-ext/issues)Apache-2.0C++PHP ^8.1CI passing

Since Apr 14Pushed 1y ago4 watchersCompare

[ Source](https://github.com/awesomized/simdutf-php-ext)[ Packagist](https://packagist.org/packages/awesome/simdutf)[ Docs](https://github.com/awesomized/simdutf-php-ext)[ RSS](/packages/awesome-simdutf/feed)WikiDiscussions main Synced 1mo ago

READMEChangelog (1)DependenciesVersions (2)Used By (0)

`awesome/simdutf`
=================

[](#awesomesimdutf)

[![Tests status](https://github.com/awesomized/simdutf-php-ext/workflows/Tests/badge.svg)](https://github.com/awesomized/simdutf-php-ext/actions?query=workflow%3ATests)[![Latest Stable Version](https://camo.githubusercontent.com/2304c652935e8026b1b771b966ec1f646349b473c6ab29807fcf67239bb5480f/68747470733a2f2f696d672e736869656c64732e696f2f7061636b61676973742f762f617765736f6d652f73696d64757466)](https://packagist.org/packages/awesome/simdutf)

Unicode and Base64 routines at billions of characters per second in PHP using the [simdutf](https://github.com/simdutf/simdutf) library.

Accelerates Unicode routines (UTF8, UTF16, UTF32) and Base64 using SSE2, AVX2, NEON, AVX-512, RISC-V Vector Extension, LoongArch64, etc.

The `simdutf` library is already part of Node.js, Bun, WebKit, Chromium, Cloudflare Workers, and more. Now it can be used with PHP.

Related SIMD-accelerated PHP extensions
---------------------------------------

[](#related-simd-accelerated-php-extensions)

- [crc\_fast](https://packagist.org/packages/awesome/crc_fast) PHP extension for SIMD-accelerated CRC calculations at >100GiB/s.
- [simdjson\_plus](https://packagist.org/packages/awesome/simdjson_plus) PHP extension for parsing gigabytes of JSON per second using the [simdjson](https://github.com/simdjson/simdjson) project.

Changes
-------

[](#changes)

See the [change log](CHANGELOG.md).

Installing
----------

[](#installing)

Use [Composer](https://getcomposer.org) to install this library using [PIE](https://github.com/php/pie):

```
composer install awesome/simdutf
```

Building
--------

[](#building)

Like most `PHP` extensions, you can also build yourself:

```
$ phpize
$ ./configure
$ make
$ make test
$ make install
```

And add the following line to your `php.ini`:

```
extension=simdutf.so

```

Usage
-----

[](#usage)

Supplies all the [simdutf API](https://github.com/simdutf/simdutf#api) functions as PHP functions in the `SimdUtf` namespace (e.g., `simdutf::validate_utf8()` becomes `\SimdUtf\validate_utf8()`).

See the [stubs file](simdutf.stub.php) for a complete list of functions.

References
----------

[](#references)

- [simdutf](https://github.com/simdutf/simdutf) the `simdutf` library
- [simdutf-rs](https://github.com/Nugine/simdutf-rs) the Rust bindings for `simdutf`

###  Health Score

29

—

LowBetter than 59% of packages

Maintenance47

Moderate activity, may be stable

Popularity6

Limited adoption so far

Community8

Small or concentrated contributor base

Maturity46

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

Unknown

Total

1

Last Release

399d ago

### Community

Maintainers

![](https://www.gravatar.com/avatar/d0ecf1f0373c14a2206bd1797d2785caec54cee2b78ca0e6986275fb4a561684?d=identicon)[onethumb](/maintainers/onethumb)

---

Top Contributors

[![onethumb](https://avatars.githubusercontent.com/u/569776?v=4)](https://github.com/onethumb "onethumb (2 commits)")

---

Tags

utf8unicodebase64utf16simdutf32

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![Health badge](/badges/awesome-simdutf/health.svg)

```
[![Health](https://phpackages.com/badges/awesome-simdutf/health.svg)](https://phpackages.com/packages/awesome-simdutf)
```

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