diff --git a/blockem/blockem.php b/blockem/blockem.php
index aaa69399..3de7be40 100644
--- a/blockem/blockem.php
+++ b/blockem/blockem.php
@@ -138,6 +138,10 @@ function blockem_prepare_body_content_filter(\Friendica\App $a, &$hook_data)
 }
 
 function blockem_display_item(&$a,&$b) {
+	if (empty($b['output']['body'])) {
+		return;
+	}
+
 	if(strstr($b['output']['body'],'id="blockem-wrap-'))
 		$b['output']['thumb'] = $a->get_baseurl() . "/images/person-80.jpg";
 }
@@ -177,7 +181,7 @@ function blockem_item_photo_menu(&$a,&$b) {
 
 	$blocked = false;
 	$author = $b['item']['author-link'];
-	if(is_array($a->data['blockem'])) {
+	if(!empty($a->data['blockem'])) {
 		foreach($a->data['blockem'] as $bloke) {
 			if(link_compare($bloke,$author)) {
 				$blocked = true;
diff --git a/fromgplus/fromgplus.php b/fromgplus/fromgplus.php
index 5dfac50c..fcee3260 100644
--- a/fromgplus/fromgplus.php
+++ b/fromgplus/fromgplus.php
@@ -455,7 +455,7 @@ function fromgplus_fetch($a, $uid) {
 
 	$lastdate = 0;
 
-	if (!is_array($activities->items))
+	if (empty($activities->items))
 		return;
 
 	$reversed = array_reverse($activities->items);
diff --git a/jappixmini/jappixmini.php b/jappixmini/jappixmini.php
index 37d2ce5c..372193fb 100644
--- a/jappixmini/jappixmini.php
+++ b/jappixmini/jappixmini.php
@@ -477,7 +477,7 @@ function jappixmini_script(App $a)
 		return;
 	}
 
-	if ($_GET["mode"] == "minimal") {
+	if (defaults($_GET, "mode", '') == "minimal") {
 		return;
 	}
 
diff --git a/openstreetmap/openstreetmap.php b/openstreetmap/openstreetmap.php
index 974be0a0..0fe2a2fd 100644
--- a/openstreetmap/openstreetmap.php
+++ b/openstreetmap/openstreetmap.php
@@ -94,7 +94,7 @@ function openstreetmap_location($a, &$item)
 		}
 	}
 
-	if ($target == "") {
+	if (empty($target)) {
 		$target = $nomserver.'?q='.urlencode($item['location']);
 	}
 
diff --git a/pumpio/pumpio.php b/pumpio/pumpio.php
index 1b6469ed..56888548 100644
--- a/pumpio/pumpio.php
+++ b/pumpio/pumpio.php
@@ -654,8 +654,7 @@ function pumpio_action(&$a, $uid, $uri, $action, $content = "")
 
 function pumpio_sync(&$a)
 {
-	$r = q("SELECT * FROM `addon` WHERE `installed` = 1 AND `name` = 'pumpio'",
-		$plugin);
+	$r = q("SELECT * FROM `addon` WHERE `installed` = 1 AND `name` = 'pumpio'");
 
 	if (!DBM::is_result($r)) {
 		return;
@@ -765,7 +764,7 @@ function pumpio_fetchtimeline(&$a, $uid)
 
 	logger('pumpio: fetching for user '.$uid.' '.$url.' C:'.$client->client_id.' CS:'.$client->client_secret.' T:'.$client->access_token.' TS:'.$client->access_token_secret);
 
-	$username = $user.'@'.$host;
+	$useraddr = $username.'@'.$hostname;
 
 	if (pumpio_reachable($url)) {
 		$success = $client->CallAPI($url, 'GET', [], ['FailOnAccessError'=>true], $user);
@@ -774,7 +773,7 @@ function pumpio_fetchtimeline(&$a, $uid)
 	}
 
 	if (!$success) {
-		logger('pumpio: error fetching posts for user '.$uid." ".$username." ".print_r($user, true));
+		logger('pumpio: error fetching posts for user '.$uid." ".$useraddr." ".print_r($user, true));
 		return;
 	}
 
@@ -903,7 +902,7 @@ function pumpio_dolike(&$a, $uid, $self, $post, $own_id, $threadcompletion = tru
 {
 	require_once('include/items.php');
 
-	if ($post->object->id == "") {
+	if (empty($post->object->id)) {
 		logger('Got empty like: '.print_r($post, true), LOGGER_DEBUG);
 		return;
 	}
@@ -957,6 +956,7 @@ function pumpio_dolike(&$a, $uid, $self, $post, $own_id, $threadcompletion = tru
 	$likedata['gravity'] = GRAVITY_ACTIVITY;
 	$likedata['uid'] = $uid;
 	$likedata['wall'] = 0;
+	$likedata['network'] = NETWORK_PUMPIO;
 	$likedata['uri'] = Item::newURI($uid);
 	$likedata['parent-uri'] = $orig_post["uri"];
 	$likedata['contact-id'] = $contactid;
@@ -1186,7 +1186,7 @@ function pumpio_dopost(&$a, $client, $uid, $self, $post, $own_id, $threadcomplet
 		$postarray['parent-uri'] = $post->object->inReplyTo->id;
 	}
 
-	if ($post->object->pump_io->proxyURL) {
+	if (!empty($post->object->pump_io->proxyURL)) {
 		$postarray['extid'] = $post->object->pump_io->proxyURL;
 	}
 
@@ -1203,7 +1203,7 @@ function pumpio_dopost(&$a, $client, $uid, $self, $post, $own_id, $threadcomplet
 	$postarray['body'] = HTML::toBBCode($post->object->content);
 	$postarray['object'] = json_encode($post);
 
-	if ($post->object->fullImage->url != "") {
+	if (!empty($post->object->fullImage->url)) {
 		$postarray["body"] = "[url=".$post->object->fullImage->url."][img]".$post->object->image->url."[/img][/url]\n".$postarray["body"];
 	}
 
@@ -1587,9 +1587,9 @@ function pumpio_fetchallcomments(&$a, $uid, $id)
 			$like->object->id = $item->id;
 			$like->actor = new stdClass;
 			$like->actor->displayName = $item->displayName;
-			$like->actor->preferredUsername = $item->preferredUsername;
+			//$like->actor->preferredUsername = $item->preferredUsername;
+			//$like->actor->image = $item->image;
 			$like->actor->url = $item->url;
-			$like->actor->image = $item->image;
 			$like->generator = new stdClass;
 			$like->generator->displayName = "pumpio";
 			pumpio_dolike($a, $uid, $self, $post, $own_id, false);
diff --git a/rendertime/rendertime.php b/rendertime/rendertime.php
index ae7f6d66..3bb8892b 100644
--- a/rendertime/rendertime.php
+++ b/rendertime/rendertime.php
@@ -30,7 +30,7 @@ function rendertime_page_end(&$a, &$o) {
 	$ignored_modules = ["fbrowser"];
 	$ignored = in_array($a->module, $ignored_modules);
 
-	if (is_site_admin() && ($_GET["mode"] != "minimal") && !$a->is_mobile && !$a->is_tablet && !$ignored) {
+	if (is_site_admin() && (defaults($_GET, "mode", '') != "minimal") && !$a->is_mobile && !$a->is_tablet && !$ignored) {
 		$o = $o.'<div class="renderinfo">'. L10n::t("Database: %s/%s, Network: %s, Rendering: %s, Session: %s, I/O: %s, Other: %s, Total: %s",
 			round($a->performance["database"] - $a->performance["database_write"], 3),
 			round($a->performance["database_write"], 3),
diff --git a/showmore/showmore.php b/showmore/showmore.php
index e39acdee..3673c956 100644
--- a/showmore/showmore.php
+++ b/showmore/showmore.php
@@ -126,6 +126,8 @@ function showmore_prepare_body(\Friendica\App $a, &$hook_data)
 	if (get_body_length($hook_data['html']) > $chars) {
 		$found = true;
 		$shortened = trim(showmore_cutitem($hook_data['html'], $chars)) . "...";
+	} else {
+		$found = false;
 	}
 
 	if ($found) {
diff --git a/statusnet/statusnet.php b/statusnet/statusnet.php
index b97a6ca5..6fc5b8a9 100644
--- a/statusnet/statusnet.php
+++ b/statusnet/statusnet.php
@@ -1065,7 +1065,7 @@ function statusnet_createpost(App $a, $uid, $post, $self, $create_user, $only_ex
 	$postarray['uid'] = $uid;
 	$postarray['wall'] = 0;
 
-	if (is_object($post->retweeted_status)) {
+	if (!empty($post->retweeted_status)) {
 		$content = $post->retweeted_status;
 		statusnet_fetch_contact($uid, $content->user, false);
 	} else {
@@ -1080,7 +1080,7 @@ function statusnet_createpost(App $a, $uid, $post, $self, $create_user, $only_ex
 
 	$contactid = 0;
 
-	if ($content->in_reply_to_status_id != "") {
+	if (!empty($content->in_reply_to_status_id)) {
 
 		$parent = $hostname . "::" . $content->in_reply_to_status_id;
 
@@ -1166,19 +1166,19 @@ function statusnet_createpost(App $a, $uid, $post, $self, $create_user, $only_ex
 	$postarray['created'] = DateTimeFormat::utc($content->created_at);
 	$postarray['edited'] = DateTimeFormat::utc($content->created_at);
 
-	if (is_string($content->place->name)) {
+	if (!empty($content->place->name)) {
 		$postarray["location"] = $content->place->name;
 	}
 
-	if (is_string($content->place->full_name)) {
+	if (!empty($content->place->full_name)) {
 		$postarray["location"] = $content->place->full_name;
 	}
 
-	if (is_array($content->geo->coordinates)) {
+	if (!empty($content->geo->coordinates)) {
 		$postarray["coord"] = $content->geo->coordinates[0] . " " . $content->geo->coordinates[1];
 	}
 
-	if (is_array($content->coordinates->coordinates)) {
+	if (!empty($content->coordinates->coordinates)) {
 		$postarray["coord"] = $content->coordinates->coordinates[1] . " " . $content->coordinates->coordinates[0];
 	}
 
diff --git a/twitter/twitter.php b/twitter/twitter.php
index 99c7d496..2b5b4b53 100644
--- a/twitter/twitter.php
+++ b/twitter/twitter.php
@@ -799,7 +799,7 @@ function twitter_do_mirrorpost(App $a, $uid, $post)
 	// $datarray['object'] = json_encode($post); // Activate for debugging
 	$datarray["title"] = "";
 
-	if (is_object($post->retweeted_status)) {
+	if (!empty($post->retweeted_status)) {
 		// We don't support nested shares, so we mustn't show quotes as shares on retweets
 		$item = twitter_createpost($a, $uid, $post->retweeted_status, ['id' => 0], false, false, true);
 
@@ -1254,7 +1254,7 @@ function twitter_expand_entities(App $a, $body, $item, $picture)
 function twitter_media_entities($post, &$postarray)
 {
 	// There are no media entities? So we quit.
-	if (!is_array($post->extended_entities->media)) {
+	if (empty($post->extended_entities->media)) {
 		return "";
 	}
 
@@ -1274,6 +1274,9 @@ function twitter_media_entities($post, &$postarray)
 	// This is a pure media post, first search for all media urls
 	$media = [];
 	foreach ($post->extended_entities->media AS $medium) {
+		if (!isset($media[$medium->url])) {
+			$media[$medium->url] = '';
+		}
 		switch ($medium->type) {
 			case 'photo':
 				$media[$medium->url] .= "\n[img]" . $medium->media_url_https . "[/img]";
@@ -1396,6 +1399,9 @@ function twitter_createpost(App $a, $uid, $post, $self, $create_user, $only_exis
 	if ($post->user->protected) {
 		$postarray['private'] = 1;
 		$postarray['allow_cid'] = '<' . $self['id'] . '>';
+	} else {
+		$postarray['private'] = 0;
+		$postarray['allow_cid'] = '';
 	}
 
 	if (is_string($post->full_text)) {
@@ -1420,22 +1426,22 @@ function twitter_createpost(App $a, $uid, $post, $self, $create_user, $only_exis
 
 	$statustext = $converted["plain"];
 
-	if (is_string($post->place->name)) {
+	if (!empty($post->place->name)) {
 		$postarray["location"] = $post->place->name;
 	}
-	if (is_string($post->place->full_name)) {
+	if (!empty($post->place->full_name)) {
 		$postarray["location"] = $post->place->full_name;
 	}
-	if (is_array($post->geo->coordinates)) {
+	if (!empty($post->geo->coordinates)) {
 		$postarray["coord"] = $post->geo->coordinates[0] . " " . $post->geo->coordinates[1];
 	}
-	if (is_array($post->coordinates->coordinates)) {
+	if (!empty($post->coordinates->coordinates)) {
 		$postarray["coord"] = $post->coordinates->coordinates[1] . " " . $post->coordinates->coordinates[0];
 	}
-	if (is_object($post->retweeted_status)) {
+	if (!empty($post->retweeted_status)) {
 		$retweet = twitter_createpost($a, $uid, $post->retweeted_status, $self, false, false, $noquote);
 
-		$retweet['object'] = $postarray['object'];
+		//$retweet['object'] = $postarray['object'];
 		$retweet['private'] = $postarray['private'];
 		$retweet['allow_cid'] = $postarray['allow_cid'];
 		$retweet['contact-id'] = $postarray['contact-id'];
@@ -1446,7 +1452,7 @@ function twitter_createpost(App $a, $uid, $post, $self, $create_user, $only_exis
 		$postarray = $retweet;
 	}
 
-	if (is_object($post->quoted_status) && !$noquote) {
+	if (!empty($post->quoted_status) && !$noquote) {
 		$quoted = twitter_createpost($a, $uid, $post->quoted_status, $self, false, false, true);
 
 		$postarray['body'] = $statustext;
@@ -1508,10 +1514,6 @@ function twitter_fetchparentposts(App $a, $uid, $post, TwitterOAuth $connection,
 
 			$item = Item::insert($postarray);
 
-			if ($notify) {
-				$item = $notify;
-			}
-
 			$postarray["id"] = $item;
 
 			logger('twitter_fetchparentpost: User ' . $self["nick"] . ' posted parent timeline item ' . $item);
@@ -1629,7 +1631,7 @@ function twitter_fetchhometimeline(App $a, $uid)
 
 			$postarray = twitter_createpost($a, $uid, $post, $self, $create_user, true, false);
 
-			if (trim($postarray['body']) == "") {
+			if (empty($postarray['body']) || trim($postarray['body']) == "") {
 				continue;
 			}
 
diff --git a/xmpp/xmpp.php b/xmpp/xmpp.php
index bd5adb57..bef31fed 100644
--- a/xmpp/xmpp.php
+++ b/xmpp/xmpp.php
@@ -131,7 +131,7 @@ function xmpp_converse(App $a)
 		return;
 	}
 
-	if ($_GET["mode"] == "minimal") {
+	if (defaults($_GET, "mode", '') == "minimal") {
 		return;
 	}