Syntax error: end of file expected

<?php
function detect()
{
    $arr_browsers = ["Opera", "Edg", "Chrome", "Safari", "Firefox", "MSIE", "Trident"];
     
    /* @var $_SERVER type */
    $agent = $_SERVER['HTTP_USER_AGENT'];
    foreach ($arr_browsers as $browser) {
        if (\strpos($agent, $browser) === true){
            echo 'Dátum zákroku / Date of procedure [YYYY-MM-DD]';
            echo '<p><input class="w3-input w3-border" required name="datum_zakroku"></p>';
        }
        else if (\strpos($agent, $browser) === true){
            echo 'Dátum zákroku / Date of procedure [YYYY-MM-DD]';
            echo '<p><input class="w3-input w3-border" required name="datum_zakroku"></p>';
        }
        else{
            '<div class="w3-text-d1"><p>Dátum zákroku / Date of procedure</p></div>
            <p><input class="w3-input w3-border" type="date" required name="datum_zakroku"></p>';
        }
    }
// see what is missing at this point
    detect()
?>