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Contact Form Validation
I have created a contact form and i need to provide email and phone no. validation in that. I have created the form in a html file and on submit it redirects to a php file where all the mailing and database storage things happen. After the code is processed it redirects automatically to the html file. So the php file is not at all seen. But now i want to validate the email and phone no. of the form. If it is invalid it say invalid on the same form and extension should be html only.
This site has tutorials for all of these.