Shortcode to total up wedding dinner selections

<?php
// Help Scout 52777
// shortcode to grab dinner selection totals from one form by value
// usage: [dinner choice='whatever' formid=ID]
// eg [dinner choice='Panko Cod' formid=892]
if (!function_exists('ch_get_dinners')) {
    function ch_get_dinners($atts) {
        // parse the shortcode
        extract(shortcode_atts(array(
            'choice' => null,
            'formid' => null
        ), $atts));

        // define constants
        $paging = array('offset' => 0, 'page_size' => 100 );
        $sorting = array();
        $total_count = 0;

        // define search criteria
        $search_criteria = array();
        $search_criteria["field_filters"][] = array('value' => $choice);

        // get the entries which match the dinner choice
        $entries = GFAPI::get_entries($formid, $search_criteria, $sorting, $paging, $total_count);

        // initialize the counter
        $counter = 0;

        // define which fields to check for dinner selections
        $all_fields = array(22, 24, 52, 61, 66);

        // loop through all the entries
        foreach($entries as &$entry){
            // check our 5 possible fields
            foreach ($all_fields as &$field_id){
                if ($entry[$field_id] == $choice){
                    $counter++;
                }
            }
        }
        return $counter;
    }
}
add_shortcode('dinner', 'ch_get_dinners');