Как добавить [vk] {vk_url} [/vk] и тд на страницу регистрации?

$stopregistration = FALSE;
$_IP = get_ip();

if($config['allow_social'] AND $config['allow_registration'] AND !$is_logged) {

    include_once (ENGINE_DIR . '/data/socialconfig.php');

    if( !$_SESSION['state'] ) $_SESSION['state'] = md5(uniqid(rand(), TRUE));

    if ( $social_config['vk'] ) {

        $social_params = array(
            'client_id'     => $social_config['vkid'],
            'redirect_uri'  => $config['http_home_url'] . "index.php?do=auth-social&provider=vk",
            'scope' => 'offline,wall,email',
            'state' => $_SESSION['state'],
            'response_type' => 'code'
        );
        
        $vk_url = 'http://oauth.vk.com/authorize'.'?' . http_build_query($social_params);
        
        $tpl->set( '[vk]', "" );
        $tpl->set( '[/vk]', "" );
        $tpl->set( '{vk_url}', $vk_url );

    } else {

        $tpl->set_block( "'\\[vk\\](.*?)\\[/vk\\]'si", "" );
        $tpl->set( '{vk_url}', '' );
    }

    if ( $social_config['od'] ) {

        $social_params = array(
            'client_id'     => $social_config['odid'],
            'redirect_uri'  => $config['http_home_url'] . "index.php?do=auth-social&provider=od",
            'state' => $_SESSION['state'],
            'response_type' => 'code'
        );

        $odnoklassniki_url = 'http://www.odnoklassniki.ru/oauth/authorize'.'?' . http_build_query($social_params);
        
        $tpl->set( '[odnoklassniki]', "" );
        $tpl->set( '[/odnoklassniki]', "" );
        $tpl->set( '{odnoklassniki_url}', $odnoklassniki_url );

    } else {

        $tpl->set_block( "'\\[odnoklassniki\\](.*?)\\[/odnoklassniki\\]'si", "" );
        $tpl->set( '{odnoklassniki_url}', '' );
    }

    if ( $social_config['fc'] ) {

        $social_params = array(
            'client_id'     => $social_config['fcid'],
            'redirect_uri'  => $config['http_home_url'] . "index.php?do=auth-social&provider=fc",
            'scope' => 'public_profile, email',
            'display' => 'popup',
            'state' => $_SESSION['state'],
            'response_type' => 'code'
        );

        $facebook_url = 'https://www.facebook.com/v2.0/dialog/oauth'.'?' . http_build_query($social_params);
        $tpl->set( '[facebook]', "" );
        $tpl->set( '[/facebook]', "" );
        $tpl->set( '{facebook_url}', $facebook_url );

    } else {

        $tpl->set_block( "'\\[facebook\\](.*?)\\[/facebook\\]'si", "" );
        $tpl->set( '{facebook_url}', '' );
    }


    if ( $social_config['google'] ) {

        $social_params = array(
            'client_id'     => $social_config['googleid'],
            'redirect_uri'  => $config['http_home_url'] . "index.php?do=auth-social&provider=google",
            'scope'         => 'https://www.googleapis.com/auth/userinfo.email https://www.googleapis.com/auth/userinfo.profile',
            'state' => $_SESSION['state'],
            'response_type' => 'code'
        );

        $google_url = 'https://accounts.google.com/o/oauth2/auth'.'?' . http_build_query($social_params);
        $tpl->set( '[google]', "" );
        $tpl->set( '[/google]', "" );
        $tpl->set( '{google_url}', $google_url );

    } else {

        $tpl->set_block( "'\\[google\\](.*?)\\[/google\\]'si", "" );
        $tpl->set( '{google_url}', '' );
    }

    if ( $social_config['mailru'] ) {

        $social_params = array(
            'client_id'     => $social_config['mailruid'],
            'redirect_uri'  => $config['http_home_url'] . "index.php?do=auth-social&provider=mailru",
            'state' => $_SESSION['state'],
            'response_type' => 'code'
        );

        $mailru_url = 'https://connect.mail.ru/oauth/authorize'.'?' . http_build_query($social_params);
        $tpl->set( '[mailru]', "" );
        $tpl->set( '[/mailru]', "" );
        $tpl->set( '{mailru_url}', $mailru_url );

    } else {

        $tpl->set_block( "'\\[mailru\\](.*?)\\[/mailru\\]'si", "" );
        $tpl->set( '{mailru_url}', '' );
    }

    if ( $social_config['yandex'] ) {

        $social_params = array(
            'client_id'     => $social_config['yandexid'],
            'redirect_uri'  => $config['http_home_url'] . "index.php?do=auth-social&provider=yandex",
            'state' => $_SESSION['state'],
            'response_type' => 'code'
        );

        $yandex_url = 'https://oauth.yandex.ru/authorize'.'?' . http_build_query($social_params);
        $tpl->set( '[yandex]', "" );
        $tpl->set( '[/yandex]', "" );
        $tpl->set( '{yandex_url}', $yandex_url );

    } else {

        $tpl->set_block( "'\\[yandex\\](.*?)\\[/yandex\\]'si", "" );
        $tpl->set( '{yandex_url}', '' );
    }

} else {

    $_SESSION['state'] = false;

    $tpl->set_block( "'\\[vk\\](.*?)\\[/vk\\]'si", "" );
    $tpl->set( '{vk_url}', '' );
    $tpl->set_block( "'\\[odnoklassniki\\](.*?)\\[/odnoklassniki\\]'si", "" );
    $tpl->set( '{odnoklassniki_url}', '' );
    $tpl->set_block( "'\\[facebook\\](.*?)\\[/facebook\\]'si", "" );
    $tpl->set( '{facebook_url}', '' );
    $tpl->set_block( "'\\[google\\](.*?)\\[/google\\]'si", "" );
    $tpl->set( '{google_url}', '' );
    $tpl->set_block( "'\\[mailru\\](.*?)\\[/mailru\\]'si", "" );
    $tpl->set( '{mailru_url}', '' );
    $tpl->set_block( "'\\[yandex\\](.*?)\\[/yandex\\]'si", "" );
    $tpl->set( '{yandex_url}', '' );
}