https://github.com/amaccis/php-stemmer
A PHP interface to the Snowball stemming algorithms
https://github.com/amaccis/php-stemmer
ffi libstemmer php-libstemmer php74 php8 snowball
Last synced: 2 months ago
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A PHP interface to the Snowball stemming algorithms
- Host: GitHub
- URL: https://github.com/amaccis/php-stemmer
- Owner: amaccis
- License: mit
- Created: 2020-02-22T15:39:53.000Z (over 5 years ago)
- Default Branch: master
- Last Pushed: 2025-01-04T20:15:26.000Z (5 months ago)
- Last Synced: 2025-03-23T22:13:07.861Z (3 months ago)
- Topics: ffi, libstemmer, php-libstemmer, php74, php8, snowball
- Language: PHP
- Homepage:
- Size: 57.6 KB
- Stars: 12
- Watchers: 0
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# php-stemmer
[](https://img.shields.io/badge/php-%5E8.1-blue.svg)
## What is PHP Stemmer?
PHP Stemmer is a PHP interface to the stemming algorithms from the [Snowball project](https://snowballstem.org/), largely inspired by Richard Boulton's [PyStemmer](https://github.com/snowballstem/pystemmer).
It uses FFI (PHP >= 7.4.0) and expects to find the file libstemmer.so (a version of [Libstemmer](https://snowballstem.org/dist/libstemmer_c.tgz) compiled as shared library) in LD_LIBRARY_PATH.
In order to set up this kind of environment you can take a look at [docker-php-libstemmer](https://github.com/amaccis/docker-php-libstemmer) Dockerfile or you can use the corresponding docker image: [amaccis/php-libstemmer](https://hub.docker.com/r/amaccis/php-libstemmer)
## Installation
PHP Stemmer is available on [Packagist](http://packagist.org/packages/amaccis/php-stemmer),
you can install it using [Composer](http://getcomposer.org).
```shell
composer require amaccis/php-stemmer
```
## Usage
```php
string(6) "arabic"
[1] =>
string(8) "armenian"
[2] =>
string(6) "basque"
[3] =>
string(7) "catalan"
[4] =>
string(6) "danish"
[5] =>
string(5) "dutch"
[6] =>
string(7) "english"
[7] =>
string(7) "finnish"
[8] =>
string(6) "french"
[9] =>
string(6) "german"
[10] =>
string(5) "greek"
[11] =>
string(5) "hindi"
[12] =>
string(9) "hungarian"
[13] =>
string(10) "indonesian"
[14] =>
string(5) "irish"
[15] =>
string(7) "italian"
[16] =>
string(10) "lithuanian"
[17] =>
string(6) "nepali"
[18] =>
string(9) "norwegian"
[19] =>
string(6) "porter"
[20] =>
string(10) "portuguese"
[21] =>
string(8) "romanian"
[22] =>
string(7) "russian"
[23] =>
string(7) "serbian"
[24] =>
string(7) "spanish"
[25] =>
string(7) "swedish"
[26] =>
string(5) "tamil"
[27] =>
string(7) "turkish"
[28] =>
string(7) "yiddish"
}
*/
$algorithm = "english";
$word = "cycling";
$stemmer = new Stemmer($algorithm); // default character encoding is UTF-8
$stem = $stemmer->stemWord($word);
var_dump($stem);
/*
string(4) "cycl"
*/
$algorithm = "basque";
$word = "aberatsenetakoa";
$stemmer = new Stemmer($algorithm, CharacterEncodingEnum::ISO_8859_1);
$stem = $stemmer->stemWord($word);
var_dump($stem);
/*
string(8) "aberatse"
*/
```
## License
All files are MIT © [Andrea Maccis](https://twitter.com/andreamaccis) except for _resources/libstemmer.h_ BSD-3 © [Snowball Project](https://github.com/snowballstem/snowball).