Sign up form-optional checkbox to save email in a TXT file

Hi,

Right now my sign up form looks like this:
http://i58.tinypic.com/s0zekj.jpg

I want to make it like this:
http://i61.tinypic.com/zj6tc5.jpg

Obviously I can make the design changes. Problem is I don't know how to make it function as I need.

User will enter his Username, email, password. Accepting to Terms is compulsory.
IF he checks "Tell me about Contests", then Click Submit, then the email he entered should be saved in a txt file in the server (one email per line).
If he doesn't check it, then his email address will not be saved in a txt file.
I only need the email address. I don't need username, password.

My objective is, I need to collect email addresses to send them updates, news, notifications about contests etc. This way I will get the email addresses of people who are willing to receive those emails.

My site is based on wordpress. So if someone can provide a sample code in php, I think I can substitute it with my site code.

Not sure if it matter, but I have a referral signup system, email confirmation/ account activation system in place.

Thanks

 

This is relatively simple;

Name your new checkbox notify, for example

<input type="checkbox" name="notify" value="1" />

Code (markup):

In your existing PHP code that handles the form, apply this somewhere that it will execute with the successful form submission;

if ((bool) (int) $_REQUEST['notify']) {
    file_put_contents('emails.txt', "\n" . $_REQUEST['email'], FILE_APPEND); // replace this with the actual input name of your email field
}

PHP:

Make sure you create a file called emails.txt that is WRITABLE

 

This is frustrating that I can't even get such a simple thing to work WITH help.
This is my checkbox:

<input type="checkbox" name="notify" value="1" />
<label>Tell me about contests</label>

PHP:

This is my Email field code:

<label for="your_email">Email</label>
<input name="your_email_for_pub_ad" id="ad-reg-email" />

PHP:

This is how I added your code:

if ((bool) (int) $_REQUEST['notify']) {
    file_put_contents('emails.txt', "\n" . $_REQUEST['your_email_for_pub_ad'], FILE_APPEND); // replace this with the actual input name of your email field
}

PHP:

There is a ONE file with all functions (I think) in a separate folder (sub folder of my theme folder), that is where I added "your" code.
My checkbox code and email field code is in a different folder (my theme folder)

I added emails.txt to both locations. CHMOD is to 777.

Any idea why its not working?

Thanks

 

Are you getting any error? I am assuming that the PHP code is not being executed if you aren't receiving errors, unless you have error displaying turned off

 

display_errors is turned on.
Do I need to turn display_startup_errors on too?

If I provide you access, do you have time to take a look?

Thanks

 

The point is - the input with the checkbox is probably in an existing form, right? That form will send it's information to a file, or to itself, depending on how it's coded. So, what does it say in the action-attribute on the fom you placed the checkbox in?

 

This is what I see:

<form name="registration_for_ad" id="registration-for-ad" method="post" action="">

PHP:

Thanks

 

What I would recommend, is finding a reference to the corresponding input fields of that form, in your PHP code. Basically find out where in your PHP code the registration is being processed, and apply my PHP snippet to that area.

I would be happy to take a look for you, but the idea here is to help you learn and understand what is going on. You're on the right track, just need to do some digging.

You could always download Sublime Text, and use it's "Find in Folder" feature, to pinpoint the code.

 

Yeah I want to understand. So I'll try that tool you suggested and if I still can't figure it out I will let you know and you can take a look.
Thanks

 

Okay - then it's one of two - if that form is processed via AJAX, then it doesn't really need an action-property, same if it's processed within the same file - it's either one. So either the processing is in the file itself, or you need to go looking for a javascript-file that processes the form.

 

@PoPSiCLe this isn't necessarily true. A blank action would target the current URL, but that doesn't mean it's a single page PHP script. It could be a bootstrapped application, and the code that handles that form could be in any number of locations.

 

That is true, but in that case, most likely there is an include-script somewhere - which I of course should have mentioned. Regardless, I doubt this is the most advanced WP-plugin out there, and it's probably relatively simple to figure out.