Condtional auto-reply message for GravityForms

conditional-gf-notifications.php

<?php
// http://www.gravityhelp.com/forums/topic/conditional-logic-for-user-notifications
// update the "2" to the ID of your form
add_filter('gform_pre_submission_filter_2', 'your_prefix_conditional_message');
function your_prefix_conditional_message($form){
 
        // update the "7_1" following "input_" to the IDs of your fields
        $choice1 = RGForms::post('input_7_1');
        $choice2 = RGForms::post('input_7_2');
        $choice3 = RGForms::post('input_7_3');
 
        // if any box was checked, say thank you.  Since field is required, this will always test TRUE
        if($choice1 || $choice2 || $choice3)
                $form['autoResponder']['message'] .= "Thank You";
 
        // append a different message (or link) based on the interest
        if($choice1)
                $form['autoResponder']['message'] .= "<p><a href='http://yourdownloadurl.com/uploads/choice1.pdf' title='Download your Choice1 here'>Choice1 Link Text</a></p>";
        if($choice2)
                $form['autoResponder']['message'] .= "<p><a href='http://yourdownloadurl.com/uploads/choice2.pdf' title='Download your Choice2 here'>Choice2 Link Text</a></p>";
        if($choice3)
                $form['autoResponder']['message'] .= "<p><a href='http://yourdownloadurl.com/uploads/choice3.pdf' title='Download your Choice3 here'>Choice3 Link Text</a></p>";
 
        // return modified form
        return $form;
}