Thread

Hi all.

I am integrating a mailchimp subscribe form into an EE template. The form works, and allows the user to subscribe, but I have two notices appearing. I should mention no notices show when the form is in a standard page, not an EE template. I have set to allow PHP output on this form. I also tried input just to sure but both display the notices.

The form has a require_once:

<? require_once('-/inc/store-address.php'); if($_GET['submit']){ echo storeAddress(); } ?>

and the store-address.php looks like:

<?php
function storeAddress(){
 
 if(!$_GET['email']){ return "No email address provided"; } 

 if(!preg_match("/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*$/i", $_GET['email'])) {
  return "Email address is invalid"; 
 }

 require_once('MCAPI.class.php');
 $api = new MCAPI('87610ca40190fdaf58907cea1c2eb2c7-us2');
 
 $list_id = "245bd30377";

 if($api->listSubscribe($list_id, $_GET['email'], '') === true) {
  return 'Success! Check your email to confirm sign up.';
 }else{
  return 'Error: ' . $api->errorMessage;
 }
 
}

if($_GET['ajax']){ echo storeAddress(); }
?>

I think the notices are refering to ‘submit’ in the require_once, and ‘ajax’ at the bottom of the store-address.php script.

How can I resolve this?

You need to check if a value has been set before accessing it. You can use the isset() function:

<? require_once('-/inc/store-address.php'); if(isset($_GET['submit'])){ echo storeAddress(); } ?>

if(isset($_GET['ajax'])){ echo storeAddress(); }

Hi Patrick. Thank you for helping out.

I have added the isset() function, and both notices disappear? Can you explain what that means?

If you try to access an element in an array that isn’t there php will report an error. The isset() function checks if that element exists in the array and returns true if it exists, false if not.

I have moved this to Community Help since it is fairly custom.  However - have you checked devot-ee for MailChimp add-ons? I think that they might make this a bit easier on you.