function calculate_couples($id)
{
    $polls = get_polls();
    foreach ($polls as $poll) {
        mysql_query("UPDATE poll SET Status = (SELECT ID FROM poll_status WHERE Name = 'Ingestuurd') WHERE Status = (SELECT ID FROM poll_status WHERE Name = 'Opgeslagen')");
    }
    //init($users);
    $id = (int) $id;
    $success = 0;
    $iteration = 0;
    $users = get_users_order_by_id();
    while ($success == 0) {
        //echo "Nieuwe berekening starten<br />";
        calculate_possible_polls($users);
        $success = 1;
        foreach ($users as $user) {
            if (get_number_of_candidate_reviews_given($user['ID']) < mysql_result(mysql_query("SELECT Value FROM parameter WHERE Short_name = 'Reviews_to_give'"), 0)) {
                $success = 0;
                //echo "Oorzaak: if te weinig reviews geven, user: "******"SELECT Value FROM parameter WHERE Short_name = 'Reviews_to_receive'"), 0)) {
                $success = 0;
                //echo "Oorzaak: if te weinig reviews krijgen, user: "******"SELECT Value FROM parameter WHERE Short_name = 'Reviews_by_not_teammanager'"),0)){
            			$success = 0;
            			//echo "Oorzaak: if Maximum aantal reviews door (niet eigen) manager, user: "******"SELECT Value FROM parameter WHERE Short_name = 'Reviews_own_department'"), 0)) {
                $success = 0;
                //echo "Oorzaak: if Maximum aantal reviews uit eigen departement, user: "******"UPDATE batch SET Status = (SELECT ID FROM batch_status WHERE Name = 'Calculate') WHERE ID = {$id}");
    /*mysql_query("INSERT INTO poll (Reviewer, Reviewee, Status, Time_created, Last_update, Batch) VALUES ((SELECT Reviewer FROM preferred_poll),(SELECT Reviewee FROM preferred_poll),(SELECT ID FROM poll_status WHERE Name = 'Niet Ingevuld'),'$date','$date', $batch)");
    	$date = create_date();*/
}
<?php

/**
 * De verschillende poll scores: (hoge score is beter)
 * Teammanager:
 *        JA=  [0;    -10]
 *        NEE= [0;    10]
 * Usermember:
 *        JA=     [0;    -10]
 *        NEE= [10;    20]
 **/
set_time_limit(60);
$selected_page = "Home";
require 'includes/header.php';
$users = get_users_order_by_id();
if (isset($_GET['id'])) {
    if (isset($_POST['recalculate'])) {
        calculate_couples($_GET['id']);
        header('Location: calculate.php?id=' . $_GET['id']);
    } else {
        if (isset($_POST['accept'])) {
            accept_calculated_polls($_GET['id']);
        }
    }
    echo '<div class="content">';
    foreach ($users as $user) {
        $user_name = get_user_by_id($user['ID']);
        echo '<div class="topContent">';
        echo '<h3>' . $user_name[0] . ' ' . $user_name[1] . '</h3>';
        get_candidate_user_info($user['ID']);
        echo '</div>';