The CakePHP framework
The most awesome validation engine ever created for PHP
A library for validating emails against several RFCs
PHP Port of Google's libphonenumber
Thin assertion library for input validation in business models.
Handle file uploads with extensible validation and storage strategies
Self-validating smart models for Laravel 5's Eloquent ORM
Simple, elegant, stand-alone validation library with NO dependencies
The Illuminate Validation package.
A fast, extensible & stand-alone PHP input validation class that allows you to validate any data
?? Nette Forms: generating, validating and processing secure forms in PHP. Handy API, fully customizable, server & client side validation and mature design.
Eloquent model validating trait.
Adds phone number functionality to Laravel and Lumen based on Google's libphonenumber API.
Semver library that offers utilities, version constraint parsing and validation.
Check Digit Validation for PHP 5.3+
Flexible Searchable, Mappable, Metable, Validation and more extensions for Laravel Eloquent ORM.
A mobile phone number validation solution based on laravel
A PHP library designed to make creating, validating, and maintaining forms easier.
PHP 5.3 implementation of json schema validation
File uploader and validation plugin for CakePHP.
Filters to validate and sanitize objects and arrays.
Easily disable HTML5 validation errors.