Most Common Value/Answer - Gravity Forms Merge Tag

gistfile1.php

<?php 
/* Add {most_common} merge tag. 
 * For assigning a unique quiz result based on most common quiz answer (A, B, C, D, value) */
add_filter('gform_custom_merge_tags', 'custom_merge_tags', 10, 4);
function custom_merge_tags($merge_tags, $form_id, $fields, $element_id) {
    $merge_tags[] = array('label' => 'Most Common Answer', 'tag' => '{most_common}');
    return $merge_tags;
}

/* Replace merge tag with most common value */
add_filter('gform_replace_merge_tags', 'replace_custom_merge', 10, 7);
function replace_custom_merge($text, $form, $entry, $url_encode, $esc_html, $nl2br, $format) {

    $custom_merge_tag = '{most_common}';

    if(strpos($text, $custom_merge_tag) === false)
        return $text;

    $field_values = array();

    foreach ($entry as $key => $val) {
        // if key is num we are dealing with a field value
        if ( is_int($key) ) {
            $field_values[] = $val;
        }
    }
    $count = array_count_values($field_values);

    $most_common = array_search(max($count), $count);

    // Take the most common value and replace {most_common} merge tag
    $text = str_replace($custom_merge_tag, $most_common, $text);

    return $text;
}

gistfile2.txt

[gravityforms action="conditional" merge_tag="{most_common}" condition="is" value="pony"]
You are a pony.
[/gravityforms]

[gravityforms action="conditional" merge_tag="{most_common}" condition="is" value="starfish"]
You are a starfish.
[/gravityforms]