max - … Basic Form Handling in PHP < PHP | The Art of Web Laravel CodeIgniter CakePHP Symfony. In a previous example, we have seen form validation using PHP on clicking submit button. In PHP Form validation, the script checks for data in respective fields based on the rules set by the developer, and returns an error if it does not meet the requirements. In this tutorial, we will show you how to create an attractive, pleasant to look form for your website, and then we will explain how to dynamically validate it using Javascript. PHP Form Validation is the process of verifying the user’s input. The following is a list of them: Client-Side Validation: It is used for field validation and is performed on client machine web browsers. Form Validation is a necessary process before the data entered in the form is submitted to the database. For testing purposes we've removed all the usual JavaScript Form Validation and HTML5 Form Validation so the form can simply be submitted and validated by PHP on the server. The client-side validation aims to assist legitimate users in entering data in the valid format before submitting it to the server. PHP Form Handling - W3Schools When submit is clicked, a php file is called through AJAX that should send an email. You then require the user to correct the input before resubmission. PHP Form Validation: Understanding How to Check User Une validation appropriée des données de formulaire est important de protéger votre forme contre les pirates et les spammeurs!