diff --git a/include/api.php b/include/api.php
index d307afa953..58f086c012 100644
--- a/include/api.php
+++ b/include/api.php
@@ -3345,7 +3345,7 @@ function api_statusnet_config($type)
 	$server    = $a->get_hostname();
 	$logo      = System::baseUrl() . '/images/friendica-64.png';
 	$email     = Config::get('config', 'admin_email');
-	$closed    = Config::get('config', 'register_policy') == REGISTER_CLOSED ? 'true' : 'false';
+	$closed    = intval(Config::get('config', 'register_policy')) === REGISTER_CLOSED ? 'true' : 'false';
 	$private   = Config::get('system', 'block_public') ? 'true' : 'false';
 	$textlimit = (string) Config::get('config', 'api_import_size', Config::get('config', 'max_import_size', 200000));
 	$ssl       = Config::get('system', 'have_ssl') ? 'true' : 'false';
diff --git a/mod/bookmarklet.php b/mod/bookmarklet.php
index 88097eb910..a26757740a 100644
--- a/mod/bookmarklet.php
+++ b/mod/bookmarklet.php
@@ -22,7 +22,7 @@ function bookmarklet_content(App $a)
 {
 	if (!local_user()) {
 		$o = '<h2>' . L10n::t('Login') . '</h2>';
-		$o .= Login::form($a->query_string, Config::get('config', 'register_policy') === REGISTER_CLOSED ? false : true);
+		$o .= Login::form($a->query_string, intval(Config::get('config', 'register_policy')) === REGISTER_CLOSED ? false : true);
 		return $o;
 	}
 
diff --git a/mod/friendica.php b/mod/friendica.php
index b3cea56dc6..f1b0fb4761 100644
--- a/mod/friendica.php
+++ b/mod/friendica.php
@@ -58,7 +58,7 @@ function friendica_init(App $a)
 			'url'             => System::baseUrl(),
 			'addons'          => $visible_addons,
 			'locked_features' => $locked_features,
-			'register_policy' => $register_policy[Config::get('config', 'register_policy')],
+			'register_policy' => $register_policy[intval(Config::get('config', 'register_policy'))],
 			'admin'           => $admin,
 			'site_name'       => Config::get('config', 'sitename'),
 			'platform'        => FRIENDICA_PLATFORM,
diff --git a/mod/home.php b/mod/home.php
index c386763ca3..d28bf3cb43 100644
--- a/mod/home.php
+++ b/mod/home.php
@@ -47,7 +47,7 @@ function home_content(App $a) {
 		}
 	}
 
-	$login = Login::form($a->query_string, Config::get('config', 'register_policy') === REGISTER_CLOSED ? 0 : 1);
+	$login = Login::form($a->query_string, intval(Config::get('config', 'register_policy')) === REGISTER_CLOSED ? 0 : 1);
 
 	$content = '';
 	Addon::callHooks("home_content",$content);
diff --git a/mod/invite.php b/mod/invite.php
index bea479a8f7..d8d98bec28 100644
--- a/mod/invite.php
+++ b/mod/invite.php
@@ -126,14 +126,14 @@ function invite_content(App $a) {
 
 	$dirloc = Config::get('system', 'directory');
 	if (strlen($dirloc)) {
-		if (Config::get('config', 'register_policy') === REGISTER_CLOSED) {
+		if (intval(Config::get('config', 'register_policy')) === REGISTER_CLOSED) {
 			$linktxt = L10n::t('Visit %s for a list of public sites that you can join. Friendica members on other sites can all connect with each other, as well as with members of many other social networks.', $dirloc . '/servers');
 		} else {
 			$linktxt = L10n::t('To accept this invitation, please visit and register at %s or any other public Friendica website.', System::baseUrl())
 			. "\r\n" . "\r\n" . L10n::t('Friendica sites all inter-connect to create a huge privacy-enhanced social web that is owned and controlled by its members. They can also connect with many traditional social networks. See %s for a list of alternate Friendica sites you can join.', $dirloc . '/servers');
 		}
 	} else { // there is no global directory URL defined
-		if (Config::get('config', 'register_policy') === REGISTER_CLOSED) {
+		if (intval(Config::get('config', 'register_policy')) === REGISTER_CLOSED) {
 			$o = L10n::t('Our apologies. This system is not currently configured to connect with other public sites or invite members.');
 			return $o;
 		} else {
diff --git a/mod/nodeinfo.php b/mod/nodeinfo.php
index 74645bc66d..fad7246075 100644
--- a/mod/nodeinfo.php
+++ b/mod/nodeinfo.php
@@ -61,7 +61,7 @@ function nodeinfo_init(App $a) {
 
 	$nodeinfo['usage'] = [];
 
-	$nodeinfo['openRegistrations'] = Config::get('config', 'register_policy') !== REGISTER_CLOSED;
+	$nodeinfo['openRegistrations'] = intval(Config::get('config', 'register_policy')) !== REGISTER_CLOSED;
 
 	$nodeinfo['metadata'] = ['nodeName' => Config::get('config', 'sitename')];
 
diff --git a/mod/openid.php b/mod/openid.php
index 7be8544cd9..3baeec28d0 100644
--- a/mod/openid.php
+++ b/mod/openid.php
@@ -62,7 +62,7 @@ function openid_content(App $a) {
 			// Successful OpenID login - but we can't match it to an existing account.
 			// New registration?
 
-			if (Config::get('config', 'register_policy') === REGISTER_CLOSED) {
+			if (intval(Config::get('config', 'register_policy')) === REGISTER_CLOSED) {
 				notice(L10n::t('Account not found and OpenID registration is not permitted on this site.') . EOL);
 				goaway(System::baseUrl());
 			}
diff --git a/mod/ping.php b/mod/ping.php
index 47c8cb40d7..f68040a2cb 100644
--- a/mod/ping.php
+++ b/mod/ping.php
@@ -201,7 +201,7 @@ function ping_init(App $a)
 		);
 		$mail_count = count($mails);
 
-		if (Config::get('config', 'register_policy') === REGISTER_APPROVE && is_site_admin()) {
+		if (intval(Config::get('config', 'register_policy')) === REGISTER_APPROVE && is_site_admin()) {
 			$regs = q(
 				"SELECT `contact`.`name`, `contact`.`url`, `contact`.`micro`, `register`.`created`
 				FROM `contact` RIGHT JOIN `register` ON `register`.`uid` = `contact`.`uid`
diff --git a/mod/register.php b/mod/register.php
index 53bca68405..aa0f2f59bc 100644
--- a/mod/register.php
+++ b/mod/register.php
@@ -74,7 +74,7 @@ function register_post(App $a)
 
 	$user = $result['user'];
 
-	if ($netpublish && Config::get('config', 'register_policy') !== REGISTER_APPROVE) {
+	if ($netpublish && intval(Config::get('config', 'register_policy')) !== REGISTER_APPROVE) {
 		$url = System::baseUrl() . '/profile/' . $user['nickname'];
 		Worker::add(PRIORITY_LOW, "Directory", $url);
 	}
@@ -83,7 +83,7 @@ function register_post(App $a)
 	$num_invites   = Config::get('system', 'number_invites');
 	$invite_id = ((x($_POST, 'invite_id')) ? notags(trim($_POST['invite_id'])) : '');
 
-	if (Config::get('config', 'register_policy') === REGISTER_OPEN) {
+	if (intval(Config::get('config', 'register_policy')) === REGISTER_OPEN) {
 		if ($using_invites && $invite_id) {
 			q("delete * from register where hash = '%s' limit 1", dbesc($invite_id));
 			PConfig::set($user['uid'], 'system', 'invites_remaining', $num_invites);
@@ -109,7 +109,7 @@ function register_post(App $a)
 			info(L10n::t('Registration successful.') . EOL);
 			goaway(System::baseUrl());
 		}
-	} elseif (Config::get('config', 'register_policy') === REGISTER_APPROVE) {
+	} elseif (intval(Config::get('config', 'register_policy')) === REGISTER_APPROVE) {
 		if (!strlen(Config::get('config', 'admin_email'))) {
 			notice(L10n::t('Your registration can not be processed.') . EOL);
 			goaway(System::baseUrl());
@@ -177,7 +177,7 @@ function register_content(App $a)
 		return;
 	}
 
-	if ((!local_user()) && (Config::get('config', 'register_policy') === REGISTER_CLOSED)) {
+	if ((!local_user()) && (intval(Config::get('config', 'register_policy')) === REGISTER_CLOSED)) {
 		notice("Permission denied." . EOL);
 		return;
 	}
@@ -256,7 +256,7 @@ function register_content(App $a)
 	$o = replace_macros($tpl, [
 		'$oidhtml' => $oidhtml,
 		'$invitations' => Config::get('system', 'invitation_only'),
-		'$permonly'    => Config::get('config', 'register_policy') === REGISTER_APPROVE,
+		'$permonly'    => intval(Config::get('config', 'register_policy')) === REGISTER_APPROVE,
 		'$permonlybox' => ['permonlybox', L10n::t('Note for the admin'), '', L10n::t('Leave a message for the admin, why you want to join this node')],
 		'$invite_desc' => L10n::t('Membership on this site is by invitation only.'),
 		'$invite_label' => L10n::t('Your invitation code: '),
diff --git a/mod/regmod.php b/mod/regmod.php
index 2a418fcda0..2b7df0bd13 100644
--- a/mod/regmod.php
+++ b/mod/regmod.php
@@ -99,7 +99,7 @@ function regmod_content(App $a)
 {
 	if (!local_user()) {
 		info(L10n::t('Please login.') . EOL);
-		$o = '<br /><br />' . Login::form($a->query_string, Config::get('config', 'register_policy') === REGISTER_CLOSED ? 0 : 1);
+		$o = '<br /><br />' . Login::form($a->query_string, intval(Config::get('config', 'register_policy')) === REGISTER_CLOSED ? 0 : 1);
 		return $o;
 	}
 
diff --git a/mod/statistics_json.php b/mod/statistics_json.php
index 0dbe0ea492..c197060ff5 100644
--- a/mod/statistics_json.php
+++ b/mod/statistics_json.php
@@ -20,7 +20,7 @@ function statistics_json_init(App $a) {
 		"name" => Config::get('config', 'sitename'),
 		"network" => FRIENDICA_PLATFORM,
 		"version" => FRIENDICA_VERSION . "-" . DB_UPDATE_VERSION,
-		"registrations_open" => Config::get('config', 'register_policy') !== REGISTER_CLOSED,
+		"registrations_open" => intval(Config::get('config', 'register_policy')) !== REGISTER_CLOSED,
 		"total_users" => Config::get('nodeinfo', 'total_users'),
 		"active_users_halfyear" => Config::get('nodeinfo', 'active_users_halfyear'),
 		"active_users_monthly" => Config::get('nodeinfo', 'active_users_monthly'),
diff --git a/mod/uimport.php b/mod/uimport.php
index 660544b471..1dbc571e2f 100644
--- a/mod/uimport.php
+++ b/mod/uimport.php
@@ -42,7 +42,7 @@ function uimport_post(App $a)
 
 function uimport_content(App $a) {
 
-	if ((!local_user()) && (Config::get('config', 'register_policy') === REGISTER_CLOSED)) {
+	if ((!local_user()) && (intval(Config::get('config', 'register_policy')) === REGISTER_CLOSED)) {
 		notice("Permission denied." . EOL);
 		return;
 	}
diff --git a/src/Content/Nav.php b/src/Content/Nav.php
index 93090c06ec..92ca714df8 100644
--- a/src/Content/Nav.php
+++ b/src/Content/Nav.php
@@ -124,7 +124,7 @@ class Nav
 			$nav['home'] = [$homelink, L10n::t('Home'), '', L10n::t('Home Page')];
 		}
 
-		if ((Config::get('config', 'register_policy') === REGISTER_OPEN) && (! local_user()) && (! remote_user())) {
+		if (intval(Config::get('config', 'register_policy')) === REGISTER_OPEN && !local_user() && !remote_user()) {
 			$nav['register'] = ['register', L10n::t('Register'), '', L10n::t('Create an account')];
 		}
 
diff --git a/src/Module/Login.php b/src/Module/Login.php
index 46cb3a85d2..06d724bb2a 100644
--- a/src/Module/Login.php
+++ b/src/Module/Login.php
@@ -43,7 +43,7 @@ class Login extends BaseModule
 			goaway(self::getApp()->get_baseurl());
 		}
 
-		return self::form(self::getApp()->get_baseurl(), Config::get('config', 'register_policy') !== REGISTER_CLOSED);
+		return self::form(self::getApp()->get_baseurl(), intval(Config::get('config', 'register_policy')) !== REGISTER_CLOSED);
 	}
 
 	public static function post()