It is very essential to have the input to your form validated before taking the form submission data for further processing.
When there are many fields in the form, the PHP validation script becomes too complex.
Moreover, since you are doing the same or similar validation for most of the forms that you make, just too much of duplicate effort is spent on form validations.
Note: You can make web forms quickly with Simfatic Forms.
By validating form responses before accepting them, we can alert users to their errors before they submit the form.
Great for "required fields" such as email addresses!
This tutorial will show you how to create a Java Script-enabled form that checks whether a user has filled in the form correctly before it's sent to the server. First we'll explain why form validation is a useful thing, and then build up a simple example form, explaining things as we go along.
This is what I’ll be taking you through today: See the Pen ftjnv by lawnch (@lawnch) on Code Pen.1507 As per usual, we need to reset browsers styling’s to treat our elements similarly for all users.
This is done by using the CSS wildcard selector: Those with a keen eye may notice the inclusion of “Open Sans” font-family; this isn’t a default font.