Libraries tagged by validation library for PHP

Official QuickEmailVerification API library client for PHP

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A complete PHP utility library for validating, formatting, comparing data, and more.

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A PHP library for Germany KVNR number validation, made by GAIA (https://gaia-group.com/)

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A PHP chess library that is used for chess move generation/validation, piece placement/movement, and check/checkmate/stalemate detection

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Web eID authentication token validation library for PHP

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Validation library for PHP 5.6+ / HHVM inspired by Joi.

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Spikkl API client library for PHP

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Validation library for PHPixie

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A PHP library for validating and formatting CPF and CNPJ numbers.

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A lightweight zero-dependency PHP library for building immutable, serializable objects with validation capabilities.

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The official PHP library for apiip.net that allowing customers to automate IP address validation and geolocation lookup in websites, applications and back-office system. Visit our API docs at https://apiip.net/documentation

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Utilities for the Jaxon library.

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Simple JWT (RFC 7519) encoding/decoding and validation library, for PHP >= 5.3.

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Server-Side Form Validation Library for PHP

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forked from daveearley/daves-email-validation-tool, An easy to use, accurate-ish & extensible email validation library for PHP 8+

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