# Introduction

laminas-i18n ships with a set of internationalization-related filters.

* [Alnum](alnum.md)
* [Alpha](alpha.md)
* [NumberFormat](number-format.md)
* [NumberParse](number-parse.md)

These filters are based on Laminas component for filtering and
normalizing data and files:
[laminas-filter](https://docs.laminas.dev/laminas-filter/).

The concept and the basic usage of the filters can be found in the
[documentation of laminas-filter](https://docs.laminas.dev/laminas-filter/).

> ### Installation requirements
>
> The filtering support of laminas-i18n depends on the
> [laminas-filter](https://docs.laminas.dev/laminas-filter/) component, so be
> sure to have it installed before getting started:
>
> ```bash
> $ composer require laminas/laminas-filter
> ```