It would require just a loop through each field in the form and check for data. Mobile number validation. You get the idea. Form validation is most important part in web development, through which we can restrict invalid entries and validate user details in some extent by using valid sets of checkpoints or validation rules. how to create a javascript validation for phone number. Thanks to these new attributes in HTML5, you can delegate some data verification functions to the browser. HTML5 introduced a new HTML validation concept called constraint Validation plays a major role in to securing a form in website. PHP Form Validation Example * required field. Mobile number length must not be more than 10 digits and less than 10 digits. Most often, the purpose of data validation is to ensure correct user input. With more and more people using the internet on their mobile it's time to change your telephone numbers to clickable areas to call the number directly from your mobile phone. has the user entered a valid date? +91 9999999999 is a valid number… This post all about the custom phone number validation in jquery. If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail: