diff --git a/blockem/blockem.php b/blockem/blockem.php
index 364156ee..8263fb10 100644
--- a/blockem/blockem.php
+++ b/blockem/blockem.php
@@ -37,7 +37,7 @@ function blockem_uninstall()
 
 function blockem_addon_settings (App $a, &$s)
 {
-	if (! local_user()) {
+	if (!local_user()) {
 		return;
 	}
 
@@ -46,7 +46,7 @@ function blockem_addon_settings (App $a, &$s)
 
 	$words = PConfig::get(local_user(), 'blockem', 'words');
 
-	if (! $words) {
+	if (!$words) {
 		$words = '';
 	}
 
@@ -72,11 +72,11 @@ function blockem_addon_settings (App $a, &$s)
 
 function blockem_addon_settings_post(App $a, array &$b)
 {
-	if (! local_user()) {
+	if (!local_user()) {
 		return;
 	}
 
-	if ($_POST['blockem-submit']) {
+	if (!empty($_POST['blockem-submit'])) {
 		PConfig::set(local_user(), 'blockem', 'words', trim($_POST['blockem-words']));
 		info(L10n::t('BLOCKEM Settings saved.') . EOL);
 	}
@@ -153,7 +153,7 @@ function blockem_display_item(App $a, array &$b = null)
 
 function blockem_conversation_start(App $a, array &$b)
 {
-	if (! local_user()) {
+	if (!local_user()) {
 		return;
 	}
 
@@ -183,7 +183,7 @@ EOT;
 
 function blockem_item_photo_menu(App $a, array &$b)
 {
-	if ((! local_user()) || ($b['item']['self'])) {
+	if (!local_user() || $b['item']['self']) {
 		return;
 	}
 
@@ -211,7 +211,7 @@ function blockem_module()
 
 function blockem_init(App $a)
 {
-	if (! local_user()) {
+	if (!local_user()) {
 		return;
 	}
 
@@ -241,6 +241,6 @@ function blockem_init(App $a)
 	}
 
 	PConfig::set(local_user(), 'blockem', 'words', $words);
-	info(L10n::t('blockem settings updated') . EOL );
+	info(L10n::t('blockem settings updated') . EOL);
 	killme();
 }
diff --git a/langfilter/langfilter.php b/langfilter/langfilter.php
index f22034e2..1f23ceda 100644
--- a/langfilter/langfilter.php
+++ b/langfilter/langfilter.php
@@ -76,9 +76,9 @@ function langfilter_addon_settings_post(App $a, &$b)
 		return;
 	}
 
-	if ($_POST['langfilter-settings-submit']) {
+	if (!empty($_POST['langfilter-settings-submit'])) {
 		PConfig::set(local_user(), 'langfilter', 'languages', trim($_POST['langfilter_languages']));
-		$enable = ((x($_POST, 'langfilter_enable')) ? intval($_POST['langfilter_enable']) : 0);
+		$enable = (x($_POST, 'langfilter_enable') ? intval($_POST['langfilter_enable']) : 0);
 		$disable = 1 - $enable;
 		PConfig::set(local_user(), 'langfilter', 'disable', $disable);
 		$minconfidence = 0 + $_POST['langfilter_minconfidence'];
diff --git a/nsfw/nsfw.php b/nsfw/nsfw.php
index 2ea20b4a..bb093249 100644
--- a/nsfw/nsfw.php
+++ b/nsfw/nsfw.php
@@ -101,7 +101,7 @@ function nsfw_addon_settings_post(&$a, &$b)
 		return;
 	}
 
-	if ($_POST['nsfw-submit']) {
+	if (!empty($_POST['nsfw-submit'])) {
 		PConfig::set(local_user(), 'nsfw', 'words', trim($_POST['nsfw-words']));
 		$enable = (x($_POST, 'nsfw-enable') ? intval($_POST['nsfw-enable']) : 0);
 		$disable = 1 - $enable;
diff --git a/showmore/showmore.php b/showmore/showmore.php
index 3673c956..e7140d19 100644
--- a/showmore/showmore.php
+++ b/showmore/showmore.php
@@ -11,31 +11,32 @@ use Friendica\Core\Addon;
 use Friendica\Core\L10n;
 use Friendica\Core\PConfig;
 
-function showmore_install() {
+function showmore_install()
+{
 	Addon::registerHook('prepare_body', 'addon/showmore/showmore.php', 'showmore_prepare_body');
 	Addon::registerHook('addon_settings', 'addon/showmore/showmore.php', 'showmore_addon_settings');
 	Addon::registerHook('addon_settings_post', 'addon/showmore/showmore.php', 'showmore_addon_settings_post');
 }
 
-function showmore_uninstall() {
+function showmore_uninstall()
+{
 	Addon::unregisterHook('prepare_body', 'addon/showmore/showmore.php', 'showmore_prepare_body');
 	Addon::unregisterHook('addon_settings', 'addon/showmore/showmore.php', 'showmore_addon_settings');
 	Addon::unregisterHook('addon_settings_post', 'addon/showmore/showmore.php', 'showmore_addon_settings_post');
 }
 
-function showmore_addon_settings(&$a,&$s) {
-
-	if(! local_user())
+function showmore_addon_settings(&$a, &$s)
+{
+	if (!local_user()) {
 		return;
+	}
 
 	/* Add our stylesheet to the page so we can make our settings look nice */
 
 	$a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="'.$a->get_baseurl().'/addon/showmore/showmore.css'.'" media="all"/>'."\r\n";
 
-	$enable_checked = (intval(PConfig::get(local_user(),'showmore','disable')) ? '' : ' checked="checked"');
-	$chars = PConfig::get(local_user(),'showmore','chars');
-	if(!$chars)
-		$chars = '1100';
+	$enable_checked = (intval(PConfig::get(local_user(), 'showmore', 'disable')) ? '' : ' checked="checked"');
+	$chars = PConfig::get(local_user(), 'showmore', 'chars', 1100);
 
 	$s .= '<span id="settings_showmore_inflated" class="settings-block fakelink" style="display: block;" onclick="openClose(\'settings_showmore_expanded\'); openClose(\'settings_showmore_inflated\');">';
 	$s .= '<h3>' . L10n::t('"Show more" Settings').'</h3>';
@@ -61,25 +62,27 @@ function showmore_addon_settings(&$a,&$s) {
 	return;
 }
 
-function showmore_addon_settings_post(&$a,&$b) {
-
-	if(! local_user())
+function showmore_addon_settings_post(&$a, &$b)
+{
+	if (!local_user()) {
 		return;
+	}
 
-	if($_POST['showmore-submit']) {
-		PConfig::set(local_user(),'showmore','chars',trim($_POST['showmore-chars']));
-		$enable = ((x($_POST,'showmore-enable')) ? intval($_POST['showmore-enable']) : 0);
+	if (!empty($_POST['showmore-submit'])) {
+		PConfig::set(local_user(), 'showmore', 'chars', trim($_POST['showmore-chars']));
+		$enable = (x($_POST, 'showmore-enable') ? intval($_POST['showmore-enable']) : 0);
 		$disable = 1-$enable;
-		PConfig::set(local_user(),'showmore','disable', $disable);
+		PConfig::set(local_user(), 'showmore', 'disable', $disable);
 		info(L10n::t('Show More Settings saved.') . EOL);
 	}
 }
 
-function get_body_length($body) {
+function get_body_length($body)
+{
 	$string = trim($body);
 
 	// DomDocument doesn't like empty strings
-	if(! strlen($string)) {
+	if (!strlen($string)) {
 		return 0;
 	}
 
@@ -94,8 +97,8 @@ function get_body_length($body) {
 	 * So we just get any element with a style attribute, and check them with a regexp
 	 */
 	$xr = $xpath->query('//*[@style]');
-	foreach($xr as $node) {
-		if(preg_match('/.*display: *none *;.*/',$node->getAttribute('style'))) {
+	foreach ($xr as $node) {
+		if (preg_match('/.*display: *none *;.*/',$node->getAttribute('style'))) {
 			// Hidden, remove it from its parent
 			$node->parentNode->removeChild($node);
 		}
@@ -118,10 +121,7 @@ function showmore_prepare_body(\Friendica\App $a, &$hook_data)
 		return;
 	}
 
-	$chars = (int) PConfig::get(local_user(), 'showmore', 'chars');
-	if (!$chars) {
-		$chars = 1100;
-	}
+	$chars = (int) PConfig::get(local_user(), 'showmore', 'chars', 1100);
 
 	if (get_body_length($hook_data['html']) > $chars) {
 		$found = true;
@@ -138,7 +138,8 @@ function showmore_prepare_body(\Friendica\App $a, &$hook_data)
 	}
 }
 
-function showmore_cutitem($text, $limit) {
+function showmore_cutitem($text, $limit)
+{
 	$text = trim($text);
 
 	$text = mb_convert_encoding($text, 'HTML-ENTITIES', "UTF-8");
@@ -167,5 +168,5 @@ function showmore_cutitem($text, $limit) {
 	$text = $doc->saveHTML();
 	$text = str_replace(["<html><body>", "</body></html>", $doctype], ["", "", ""], $text);
 
-	return($text);
+	return $text;
 }
diff --git a/startpage/startpage.php b/startpage/startpage.php
index 840b547e..00079f9c 100644
--- a/startpage/startpage.php
+++ b/startpage/startpage.php
@@ -16,21 +16,21 @@ function startpage_install() {
 	Addon::registerHook('addon_settings_post', 'addon/startpage/startpage.php', 'startpage_settings_post');
 }
 
-
-function startpage_uninstall() {
+function startpage_uninstall()
+{
 	Addon::unregisterHook('home_init', 'addon/startpage/startpage.php', 'startpage_home_init');
 	Addon::unregisterHook('addon_settings', 'addon/startpage/startpage.php', 'startpage_settings');
 	Addon::unregisterHook('addon_settings_post', 'addon/startpage/startpage.php', 'startpage_settings_post');
 }
 
-
-
-function startpage_home_init($a, $b) {
-	if(! local_user())
+function startpage_home_init($a, $b)
+{
+	if (!local_user()) {
 		return;
+	}
 
-	$page = PConfig::get(local_user(),'startpage','startpage');
-	if(strlen($page)) {
+	$page = PConfig::get(local_user(), 'startpage', 'startpage');
+	if (strlen($page)) {
 		goaway($page);
 	}
 	return;
@@ -45,11 +45,15 @@ function startpage_home_init($a, $b) {
  *
  */
 
-function startpage_settings_post($a,$post) {
-	if(! local_user())
+function startpage_settings_post($a, $post)
+{
+	if (!local_user()) {
 		return;
-	if($_POST['startpage-submit'])
-		PConfig::set(local_user(),'startpage','startpage',strip_tags(trim($_POST['startpage'])));
+	}
+
+	if (!empty($_POST['startpage-submit'])) {
+		PConfig::set(local_user(), 'startpage', 'startpage', strip_tags(trim($_POST['startpage'])));
+	}
 }
 
 /**
@@ -58,10 +62,11 @@ function startpage_settings_post($a,$post) {
  * Add our own settings info to the page.
  *
  */
-function startpage_settings(&$a,&$s) {
-
-	if(! local_user())
+function startpage_settings(&$a, &$s)
+{
+	if (!local_user()) {
 		return;
+	}
 
 	/* Add our stylesheet to the page so we can make our settings look nice */
 
@@ -69,8 +74,7 @@ function startpage_settings(&$a,&$s) {
 
 	/* Get the current state of our config variable */
 
-	$page = PConfig::get(local_user(),'startpage','startpage');
-
+	$page = PConfig::get(local_user(), 'startpage', 'startpage');
 
 	/* Add some HTML to the existing form */
 
@@ -90,5 +94,4 @@ function startpage_settings(&$a,&$s) {
 	/* provide a submit button */
 
 	$s .= '<div class="settings-submit-wrapper" ><input type="submit" name="startpage-submit" class="settings-submit" value="' . L10n::t('Save Settings') . '" /></div></div>';
-
 }
diff --git a/superblock/superblock.php b/superblock/superblock.php
index 96529df8..7a701e7c 100644
--- a/superblock/superblock.php
+++ b/superblock/superblock.php
@@ -1,6 +1,4 @@
 <?php
-
-
 /**
  * Name: superblock
  * Description: block people
@@ -12,34 +10,27 @@ use Friendica\Core\Addon;
 use Friendica\Core\L10n;
 use Friendica\Core\PConfig;
 
-function superblock_install() {
-
+function superblock_install()
+{
 	Addon::registerHook('addon_settings', 'addon/superblock/superblock.php', 'superblock_addon_settings');
 	Addon::registerHook('addon_settings_post', 'addon/superblock/superblock.php', 'superblock_addon_settings_post');
 	Addon::registerHook('conversation_start', 'addon/superblock/superblock.php', 'superblock_conversation_start');
 	Addon::registerHook('item_photo_menu', 'addon/superblock/superblock.php', 'superblock_item_photo_menu');
 	Addon::registerHook('enotify_store', 'addon/superblock/superblock.php', 'superblock_enotify_store');
-
 }
 
-
-function superblock_uninstall() {
-
+function superblock_uninstall()
+{
 	Addon::unregisterHook('addon_settings', 'addon/superblock/superblock.php', 'superblock_addon_settings');
 	Addon::unregisterHook('addon_settings_post', 'addon/superblock/superblock.php', 'superblock_addon_settings_post');
 	Addon::unregisterHook('conversation_start', 'addon/superblock/superblock.php', 'superblock_conversation_start');
 	Addon::unregisterHook('item_photo_menu', 'addon/superblock/superblock.php', 'superblock_item_photo_menu');
 	Addon::unregisterHook('enotify_store', 'addon/superblock/superblock.php', 'superblock_enotify_store');
-
 }
 
-
-
-
-
-function superblock_addon_settings(&$a,&$s) {
-
-	if(! local_user()) {
+function superblock_addon_settings(&$a, &$s)
+{
+	if (!local_user()) {
 		return;
 	}
 
@@ -47,8 +38,8 @@ function superblock_addon_settings(&$a,&$s) {
 
 	$a->page['htmlhead'] .= '<link rel="stylesheet"  type="text/css" href="' . $a->get_baseurl() . '/addon/superblock/superblock.css' . '" media="all" />' . "\r\n";
 
-	$words = PConfig::get(local_user(),'system','blocked');
-	if(! $words) {
+	$words = PConfig::get(local_user(), 'system', 'blocked');
+	if (!$words) {
 		$words = '';
 	}
 
@@ -69,54 +60,55 @@ function superblock_addon_settings(&$a,&$s) {
 	return;
 }
 
-function superblock_addon_settings_post(&$a,&$b) {
-
-	if(! local_user())
+function superblock_addon_settings_post(&$a, &$b)
+{
+	if (!local_user()) {
 		return;
+	}
 
-	if($_POST['superblock-submit']) {
-		PConfig::set(local_user(),'system','blocked',trim($_POST['superblock-words']));
+	if (!empty($_POST['superblock-submit'])) {
+		PConfig::set(local_user(), 'system', 'blocked',trim($_POST['superblock-words']));
 		info(L10n::t('SUPERBLOCK Settings saved.') . EOL);
 	}
 }
 
 function superblock_enotify_store(&$a,&$b) {
 
-	$words = PConfig::get($b['uid'],'system','blocked');
-	if($words) {
-		$arr = explode(',',$words);
-	}
-	else {
+	$words = PConfig::get($b['uid'], 'system', 'blocked');
+	if ($words) {
+		$arr = explode(',', $words);
+	} else {
 		return;
 	}
 
 	$found = false;
-	if(count($arr)) {
-		foreach($arr as $word) {
-			if(! strlen(trim($word))) {
+	if (count($arr)) {
+		foreach ($arr as $word) {
+			if (!strlen(trim($word))) {
 				continue;
 			}
 
-			if(link_compare($b['url'],$word)) {
+			if (link_compare($b['url'], $word)) {
 				$found = true;
 				break;
 			}
 		}
 	}
-	if($found) {
+	if ($found) {
 		$b['abort'] = true;
 	}
 }
 
 
-function superblock_conversation_start(&$a,&$b) {
-
-	if(! local_user())
+function superblock_conversation_start(&$a, &$b)
+{
+	if (!local_user()) {
 		return;
+	}
 
-	$words = PConfig::get(local_user(),'system','blocked');
-	if($words) {
-		$a->data['superblock'] = explode(',',$words);
+	$words = PConfig::get(local_user(), 'system', 'blocked');
+	if ($words) {
+		$a->data['superblock'] = explode(',', $words);
 	}
 	$a->page['htmlhead'] .= <<< EOT
 
@@ -132,16 +124,17 @@ EOT;
 
 }
 
-function superblock_item_photo_menu(&$a,&$b) {
-
-	if((! local_user()) || ($b['item']['self']))
+function superblock_item_photo_menu(&$a, &$b)
+{
+	if (!local_user() || $b['item']['self']) {
 		return;
+	}
 
 	$blocked = false;
 	$author = $b['item']['author-link'];
-	if(!empty($a->data['superblock'])) {
-		foreach($a->data['superblock'] as $bloke) {
-			if(link_compare($bloke,$author)) {
+	if (!empty($a->data['superblock'])) {
+		foreach ($a->data['superblock'] as $bloke) {
+			if (link_compare($bloke, $author)) {
 				$blocked = true;
 				break;
 			}
@@ -154,20 +147,21 @@ function superblock_item_photo_menu(&$a,&$b) {
 function superblock_module() {}
 
 
-function superblock_init(&$a) {
-
-	if(! local_user())
+function superblock_init(&$a)
+{
+	if (!local_user()) {
 		return;
+	}
 
-	$words = PConfig::get(local_user(),'system','blocked');
+	$words = PConfig::get(local_user(), 'system', 'blocked');
 
-	if(array_key_exists('block',$_GET) && $_GET['block']) {
-		if(strlen($words))
+	if (array_key_exists('block', $_GET) && $_GET['block']) {
+		if (strlen($words))
 			$words .= ',';
 		$words .= trim($_GET['block']);
 	}
 
-	PConfig::set(local_user(),'system','blocked',$words);
+	PConfig::set(local_user(), 'system', 'blocked', $words);
 	info(L10n::t('superblock settings updated') . EOL );
 	killme();
 }