First, I would like to say hi to everyone, I just registered, so I am new to the forums! 
But at any rate, I have a question. I have a form that I have programmed in PHP and upon completion of the form, sends the inputed information to my clients e-mail (acts as a lead) and redirects the user to the main part of the website, where you can access all of the content. Now, I need a little assistance on how to make it so if the same user comes back to the site again, they won't always have to fill out the form and it will just forward them to the main page. I'm sure this is a simple cookie issue, but I'm not quite sure how to do it.
But at any rate, I have a question. I have a form that I have programmed in PHP and upon completion of the form, sends the inputed information to my clients e-mail (acts as a lead) and redirects the user to the main part of the website, where you can access all of the content. Now, I need a little assistance on how to make it so if the same user comes back to the site again, they won't always have to fill out the form and it will just forward them to the main page. I'm sure this is a simple cookie issue, but I'm not quite sure how to do it.