This is a simple PHP class with the most common input validations

A library to validate requests for web api

A complete validation library written in PHP

Server side validation helper class in PHP

Lightweight validation library for PHP

Validator is a PHP validation library that provides a robust mechanism for validating data based on various rules. It includes a command-line tool for publishing configuration files and a Validator class for data validation.

PHP validation for Romanian VAT code (Validare PHP pentru CIF | CUI)

Simple contact form with front-end validation using jquery and back-end validation with php

PHP Input Handling

PHP Validation Library

validation library

PHP validator with expressive error messages

A php package for validation.

Php Validation

PHP Input Validation

⚡ Php validator (bool, int, float, number, string, email, uri)

PHP simple validation package

Official Documentation for Formr

We have create jquery class with the help of that you can validate our form. Its also help to intereatct with your database like username check.