This guide will show you how to add a an email confirmation field so that the form user must enter their email address twice and they must match.

Step 1

Add two Email Address elements to your form, if you haven’t done so already. One for the email and one for the email confirmation.

Step 2

Get the unique element IDs for the both of the elements, see Finding the unique element ID.

Step 3

Open the file wp-content/themes/YOUR_THEME/functions.php. In this file we’ll hook into the Quform plugin and add a new validation function to check that the emails are the same. At the bottom of functions.php, add the following PHP code.

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add_filter('iphorm_element_valid_iphorm_1_2', 'mytheme_confirm_email', 10, 3); 
function mytheme_confirm_email($valid, $value, $element)
{
    if ($value != $element->getForm()->getValue('iphorm_1_1')) {        $valid = false;
        $element->addError('The email addresses do not match');
    }
 
    return $valid;
}

add_filter('iphorm_element_valid_iphorm_1_2', 'mytheme_confirm_email', 10, 3);

function mytheme_confirm_email($valid, $value, $element)
{
    if ($value != $element->getForm()->getValue('iphorm_1_1')) {
        $valid = false;
        $element->addError('The email addresses do not match');
    }

    return $valid;
}

Modify the highlighted lines to suit the unique IDs for your form elements.

• On line 1, change iphorm_1_2 on the first line to the unique ID of your confirm email element, from Step 2
• On line 5, change iphorm_1_1 to the unique ID of your first email element, from Step 2

Further customization

It’s a good idea to hide the submitted value for your email confirm element, because it’s just a duplicate. To do that, go to Email Address → Settings → Optional and tick Do not show in the email and untick Save value to the database.