Libraries tagged by validation library for PHP

A comprehensive collection of PHP utility functions for array manipulation, string operations, date handling, HTML generation, form building, validation, and more. Modern PHP 8.2+ library with full type safety.

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Official QuickEmailVerification API library client for PHP

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

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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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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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PHP library for validating cryptocurrency wallet addresses across multiple coins

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

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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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Iban is a PHP package for parsing, validating, and extracting bank details from IBANs with ease and accuracy. Simplify financial data handling in your applications.

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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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