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/curweather/lang/cs/messages.po b/curweather/lang/cs/messages.po
index 389550eb..256502c6 100644
--- a/curweather/lang/cs/messages.po
+++ b/curweather/lang/cs/messages.po
@@ -4,16 +4,15 @@
 # 
 # 
 # Translators:
-# Aditoo, 2018
-# Aditoo, 2018
+# Lorem Ipsum <aditoo@seznam.cz>, 2018
 # michal_s <msupler@gmail.com>, 2014-2015
 msgid ""
 msgstr ""
 "Project-Id-Version: friendica\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2016-09-25 17:17+0200\n"
-"PO-Revision-Date: 2018-07-05 17:03+0000\n"
-"Last-Translator: Aditoo\n"
+"PO-Revision-Date: 2018-06-09 09:44+0000\n"
+"Last-Translator: Lorem Ipsum <aditoo@seznam.cz>\n"
 "Language-Team: Czech (http://www.transifex.com/Friendica/friendica/language/cs/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -89,7 +88,7 @@ msgstr "Vaše poloha"
 msgid ""
 "Identifier of your location (name or zip code), e.g. <em>Berlin,DE</em> or "
 "<em>14476,DE</em>."
-msgstr "Identifikátor vaší polohy (název nebo PSČ), např. <em>Praha,CZ</em> nebo <em>11000,CZ</em>."
+msgstr "Identifikátor vaší polohy (název nebo PSČ), např. <em>Berlin,DE</em> nebo <em>14476,DE</em>"
 
 #: curweather.php:176
 msgid "Units"
diff --git a/curweather/lang/cs/strings.php b/curweather/lang/cs/strings.php
index 565fe7d7..482489b1 100644
--- a/curweather/lang/cs/strings.php
+++ b/curweather/lang/cs/strings.php
@@ -22,7 +22,7 @@ $a->strings["Save Settings"] = "Uložit nastavení";
 $a->strings["Settings"] = "Nastavení";
 $a->strings["Enter either the name of your location or the zip code."] = "Zadejte buď název místa, kde se nacházíte, nebo PSČ.";
 $a->strings["Your Location"] = "Vaše poloha";
-$a->strings["Identifier of your location (name or zip code), e.g. <em>Berlin,DE</em> or <em>14476,DE</em>."] = "Identifikátor vaší polohy (název nebo PSČ), např. <em>Praha,CZ</em> nebo <em>11000,CZ</em>.";
+$a->strings["Identifier of your location (name or zip code), e.g. <em>Berlin,DE</em> or <em>14476,DE</em>."] = "Identifikátor vaší polohy (název nebo PSČ), např. <em>Berlin,DE</em> nebo <em>14476,DE</em>";
 $a->strings["Units"] = "Jednotky";
 $a->strings["select if the temperature should be displayed in &deg;C or &deg;F"] = "vyberte, jestli by se teplota měla zobrazovat v &deg;C či &deg;F";
 $a->strings["Show weather data"] = "Ukázat data o počasí";
diff --git a/fromgplus/fromgplus.php b/fromgplus/fromgplus.php
index 5dfac50c..fcee3260 100644
--- a/fromgplus/fromgplus.php
+++ b/fromgplus/fromgplus.php
@@ -455,7 +455,7 @@ function fromgplus_fetch($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/leistungsschutzrecht/leistungsschutzrecht.php b/leistungsschutzrecht/leistungsschutzrecht.php
index 04d3e556..6cfe95fe 100644
--- a/leistungsschutzrecht/leistungsschutzrecht.php
+++ b/leistungsschutzrecht/leistungsschutzrecht.php
@@ -138,6 +138,10 @@ function leistungsschutzrecht_is_member_site($url) {
 	$cleanedurlpart = explode("%", $urldata["host"]);
 
 	$hostname = explode(".", $cleanedurlpart[0]);
+	if (empty($hostname)) {
+		return false;
+	}
+
 	$site = $hostname[sizeof($hostname) - 2].".".$hostname[sizeof($hostname) - 1];
 
 	return (isset($sites[$site]));
diff --git a/morepokes/lang/cs/messages.po b/morepokes/lang/cs/messages.po
index b5dd60b9..34c7f9b5 100644
--- a/morepokes/lang/cs/messages.po
+++ b/morepokes/lang/cs/messages.po
@@ -11,7 +11,7 @@ msgstr ""
 "Project-Id-Version: friendica\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2013-02-27 05:01-0500\n"
-"PO-Revision-Date: 2018-07-06 18:55+0000\n"
+"PO-Revision-Date: 2018-06-24 17:19+0000\n"
 "Last-Translator: Aditoo\n"
 "Language-Team: Czech (http://www.transifex.com/Friendica/friendica/language/cs/)\n"
 "MIME-Version: 1.0\n"
@@ -26,23 +26,23 @@ msgstr "dát facku"
 
 #: morepokes.php:19
 msgid "bitchslapped"
-msgstr "dal/a facku"
+msgstr "dal facku"
 
 #: morepokes.php:20
 msgid "shag"
-msgstr "pomilovat"
+msgstr "ošoustat"
 
 #: morepokes.php:20
 msgid "shagged"
-msgstr "pomiloval/a"
+msgstr "ošoustal"
 
 #: morepokes.php:21
 msgid "do something obscenely biological to"
-msgstr "udělat příjemci něco obscéně biologického"
+msgstr "udělat něco obscéně biologického uživateli"
 
 #: morepokes.php:21
 msgid "did something obscenely biological to"
-msgstr "udělal/a něco obscéně biologického"
+msgstr "udělal něco obscéně biologického uživateli"
 
 #: morepokes.php:22
 msgid "point out the poke feature to"
@@ -50,15 +50,15 @@ msgstr "upozornit na funkci šťouchnutí"
 
 #: morepokes.php:22
 msgid "pointed out the poke feature to"
-msgstr "upozornil/a na funkci šťouchnutí"
+msgstr "upozornil na funkci šťouchnutí"
 
 #: morepokes.php:23
 msgid "declare undying love for"
-msgstr "vyjadřit nehynoucí lásku"
+msgstr "vyjadřit nehynoucí lásku ke"
 
 #: morepokes.php:23
 msgid "declared undying love for"
-msgstr "vyjadřil/a nehynoucí lásku k uživateli"
+msgstr "vyjadřil nehynoucí lásku ke"
 
 #: morepokes.php:24
 msgid "patent"
@@ -66,7 +66,7 @@ msgstr "patentovat"
 
 #: morepokes.php:24
 msgid "patented"
-msgstr "patentoval/a uživatele"
+msgstr "patentoval"
 
 #: morepokes.php:25
 msgid "stroke beard"
@@ -74,18 +74,18 @@ msgstr "pohladit plnovous"
 
 #: morepokes.php:25
 msgid "stroked their beard at"
-msgstr "pohladil/a plnovous"
+msgstr "pohladil jeho/její plnovous na"
 
 #: morepokes.php:26
 msgid ""
 "bemoan the declining standards of modern secondary and tertiary education to"
-msgstr "stěžovat si příjemci na klesající úroveň moderního sekundárního a terciárního vzdělávání"
+msgstr "stěžovat si na klesající úroveň moderního sekundárního a terciárního vzdělávání u"
 
 #: morepokes.php:26
 msgid ""
 "bemoans the declining standards of modern secondary and tertiary education "
 "to"
-msgstr "si stěžuje na klesající úroveň moderního sekundárního a terciárního vzdělávání"
+msgstr "si stěžoval na klesající úroveň moderního sekundárního a terciárního vzdělávání u"
 
 #: morepokes.php:27
 msgid "hug"
@@ -93,7 +93,7 @@ msgstr "obejmout"
 
 #: morepokes.php:27
 msgid "hugged"
-msgstr "obejmul/a"
+msgstr "obejmut "
 
 #: morepokes.php:28
 msgid "kiss"
@@ -101,7 +101,7 @@ msgstr "políbit"
 
 #: morepokes.php:28
 msgid "kissed"
-msgstr "políbil/a"
+msgstr "políbil"
 
 #: morepokes.php:29
 msgid "raise eyebrows at"
@@ -109,7 +109,7 @@ msgstr "zvednout obočí na"
 
 #: morepokes.php:29
 msgid "raised their eyebrows at"
-msgstr "zvedl/a obočí na"
+msgstr "zvednul obočí na"
 
 #: morepokes.php:30
 msgid "insult"
@@ -117,7 +117,7 @@ msgstr "urazit"
 
 #: morepokes.php:30
 msgid "insulted"
-msgstr "urazil/a"
+msgstr "urazil"
 
 #: morepokes.php:31
 msgid "praise"
@@ -125,7 +125,7 @@ msgstr "pochválit"
 
 #: morepokes.php:31
 msgid "praised"
-msgstr "pochválil/a"
+msgstr "pochválil"
 
 #: morepokes.php:32
 msgid "be dubious of"
@@ -133,7 +133,7 @@ msgstr "mít pochyby o"
 
 #: morepokes.php:32
 msgid "was dubious of"
-msgstr "měl/a pochyby o"
+msgstr "měl pochyby o"
 
 #: morepokes.php:33
 msgid "eat"
@@ -141,15 +141,15 @@ msgstr "sníst"
 
 #: morepokes.php:33
 msgid "ate"
-msgstr "snědl/a"
+msgstr "snědl"
 
 #: morepokes.php:34
 msgid "giggle and fawn at"
-msgstr "hihňat se na"
+msgstr "hihňat se"
 
 #: morepokes.php:34
 msgid "giggled and fawned at"
-msgstr "se hihňal/a na"
+msgstr "se hihňal"
 
 #: morepokes.php:35
 msgid "doubt"
@@ -157,7 +157,7 @@ msgstr "pochybovat"
 
 #: morepokes.php:35
 msgid "doubted"
-msgstr "zapochyboval/a o"
+msgstr "pochyboval"
 
 #: morepokes.php:36
 msgid "glare"
@@ -165,4 +165,4 @@ msgstr "zabodávát pohledem"
 
 #: morepokes.php:36
 msgid "glared at"
-msgstr "zabodával/a pohledem "
+msgstr "zabodával pohledem "
diff --git a/morepokes/lang/cs/strings.php b/morepokes/lang/cs/strings.php
index 86114ca6..f00fcae7 100644
--- a/morepokes/lang/cs/strings.php
+++ b/morepokes/lang/cs/strings.php
@@ -7,38 +7,38 @@ function string_plural_select_cs($n){
 }}
 ;
 $a->strings["bitchslap"] = "dát facku";
-$a->strings["bitchslapped"] = "dal/a facku";
-$a->strings["shag"] = "pomilovat";
-$a->strings["shagged"] = "pomiloval/a";
-$a->strings["do something obscenely biological to"] = "udělat příjemci něco obscéně biologického";
-$a->strings["did something obscenely biological to"] = "udělal/a něco obscéně biologického";
+$a->strings["bitchslapped"] = "dal facku";
+$a->strings["shag"] = "ošoustat";
+$a->strings["shagged"] = "ošoustal";
+$a->strings["do something obscenely biological to"] = "udělat něco obscéně biologického uživateli";
+$a->strings["did something obscenely biological to"] = "udělal něco obscéně biologického uživateli";
 $a->strings["point out the poke feature to"] = "upozornit na funkci šťouchnutí";
-$a->strings["pointed out the poke feature to"] = "upozornil/a na funkci šťouchnutí";
-$a->strings["declare undying love for"] = "vyjadřit nehynoucí lásku";
-$a->strings["declared undying love for"] = "vyjadřil/a nehynoucí lásku k uživateli";
+$a->strings["pointed out the poke feature to"] = "upozornil na funkci šťouchnutí";
+$a->strings["declare undying love for"] = "vyjadřit nehynoucí lásku ke";
+$a->strings["declared undying love for"] = "vyjadřil nehynoucí lásku ke";
 $a->strings["patent"] = "patentovat";
-$a->strings["patented"] = "patentoval/a uživatele";
+$a->strings["patented"] = "patentoval";
 $a->strings["stroke beard"] = "pohladit plnovous";
-$a->strings["stroked their beard at"] = "pohladil/a plnovous";
-$a->strings["bemoan the declining standards of modern secondary and tertiary education to"] = "stěžovat si příjemci na klesající úroveň moderního sekundárního a terciárního vzdělávání";
-$a->strings["bemoans the declining standards of modern secondary and tertiary education to"] = "si stěžuje na klesající úroveň moderního sekundárního a terciárního vzdělávání";
+$a->strings["stroked their beard at"] = "pohladil jeho/její plnovous na";
+$a->strings["bemoan the declining standards of modern secondary and tertiary education to"] = "stěžovat si na klesající úroveň moderního sekundárního a terciárního vzdělávání u";
+$a->strings["bemoans the declining standards of modern secondary and tertiary education to"] = "si stěžoval na klesající úroveň moderního sekundárního a terciárního vzdělávání u";
 $a->strings["hug"] = "obejmout";
-$a->strings["hugged"] = "obejmul/a";
+$a->strings["hugged"] = "obejmut ";
 $a->strings["kiss"] = "políbit";
-$a->strings["kissed"] = "políbil/a";
+$a->strings["kissed"] = "políbil";
 $a->strings["raise eyebrows at"] = "zvednout obočí na";
-$a->strings["raised their eyebrows at"] = "zvedl/a obočí na";
+$a->strings["raised their eyebrows at"] = "zvednul obočí na";
 $a->strings["insult"] = "urazit";
-$a->strings["insulted"] = "urazil/a";
+$a->strings["insulted"] = "urazil";
 $a->strings["praise"] = "pochválit";
-$a->strings["praised"] = "pochválil/a";
+$a->strings["praised"] = "pochválil";
 $a->strings["be dubious of"] = "mít pochyby o";
-$a->strings["was dubious of"] = "měl/a pochyby o";
+$a->strings["was dubious of"] = "měl pochyby o";
 $a->strings["eat"] = "sníst";
-$a->strings["ate"] = "snědl/a";
-$a->strings["giggle and fawn at"] = "hihňat se na";
-$a->strings["giggled and fawned at"] = "se hihňal/a na";
+$a->strings["ate"] = "snědl";
+$a->strings["giggle and fawn at"] = "hihňat se";
+$a->strings["giggled and fawned at"] = "se hihňal";
 $a->strings["doubt"] = "pochybovat";
-$a->strings["doubted"] = "zapochyboval/a o";
+$a->strings["doubted"] = "pochyboval";
 $a->strings["glare"] = "zabodávát pohledem";
-$a->strings["glared at"] = "zabodával/a pohledem ";
+$a->strings["glared at"] = "zabodával pohledem ";
diff --git a/newmemberwidget/newmemberwidget.php b/newmemberwidget/newmemberwidget.php
index 57b49230..5aff1c96 100644
--- a/newmemberwidget/newmemberwidget.php
+++ b/newmemberwidget/newmemberwidget.php
@@ -11,29 +11,42 @@ use Friendica\Core\Addon;
 use Friendica\Core\Config;
 use Friendica\Core\L10n;
 
-function newmemberwidget_install () {
-    Addon::registerHook( 'network_mod_init', 'addon/newmemberwidget/newmemberwidget.php', 'newmemberwidget_network_mod_init');
-    logger('newmemberwidget installed');
-}
-function newmemberwidget_uninstall () {
-    Addon::unregisterHook( 'network_mod_init', 'addon/newmemberwidget/newmemberwidget.php', 'newmemberwidget_network_mod_init');
+function newmemberwidget_install()
+{
+	Addon::registerHook( 'network_mod_init', 'addon/newmemberwidget/newmemberwidget.php', 'newmemberwidget_network_mod_init');
+	logger('newmemberwidget installed');
 }
 
-function newmemberwidget_network_mod_init ( $a, $b) {
-    if (x($_SESSION['new_member'])) {
+function newmemberwidget_uninstall()
+{
+	Addon::unregisterHook( 'network_mod_init', 'addon/newmemberwidget/newmemberwidget.php', 'newmemberwidget_network_mod_init');
+}
+
+function newmemberwidget_network_mod_init ($a, $b)
+{
+	if (empty($_SESSION['new_member'])) {
+		return;
+	}
+
 	$t = '<div id="newmember_widget" class="widget">'.EOL;
 	$t .= '<h3>'.L10n::t('New Member').'</h3>'.EOL;
 	$t .= '<a href="newmember" id="newmemberwidget-tips">' . L10n::t('Tips for New Members') . '</a><br />'.EOL;
-	if (Config::get('newmemberwidget','linkglobalsupport')==1)
-	    $t .= '<a href="https://forum.friendi.ca/profile/helpers" target="_new">'.L10n::t('Global Support Forum').'</a><br />'.EOL;
-	if (Config::get('newmemberwidget','linklocalsupport')==1)
-	    $t .= '<a href="'.$a->get_baseurl().'/profile/'.Config::get('newmemberwidget','localsupport').'" target="_new">'.L10n::t('Local Support Forum').'</a><br />'.EOL;
-	$ft = Config::get('newmemberwidget','freetext');
-	if (!trim($ft)=="")
-	    $t .= '<p>'.BBCode::convert(trim($ft)).'</p>';
+
+	if (Config::get('newmemberwidget','linkglobalsupport', false)) {
+		$t .= '<a href="https://forum.friendi.ca/profile/helpers" target="_new">'.L10n::t('Global Support Forum').'</a><br />'.EOL;
+	}
+
+	if (Config::get('newmemberwidget','linklocalsupport', false)) {
+		$t .= '<a href="'.$a->get_baseurl().'/profile/'.Config::get('newmemberwidget','localsupport').'" target="_new">'.L10n::t('Local Support Forum').'</a><br />'.EOL;
+	}
+
+	$ft = Config::get('newmemberwidget','freetext', '');
+	if (!empty($ft)) {
+		$t .= '<p>'.BBCode::convert(trim($ft)).'</p>';
+	}
+
 	$t .= '</div><div class="clear"></div>';
- 	$a->page['aside'] = $t . $a->page['aside'];
-    }
+	$a->page['aside'] = $t . $a->page['aside'];
 }
 
 function newmemberwidget_addon_admin_post(&$a)
diff --git a/numfriends/lang/cs/messages.po b/numfriends/lang/cs/messages.po
index 1c2b092e..89e454b1 100644
--- a/numfriends/lang/cs/messages.po
+++ b/numfriends/lang/cs/messages.po
@@ -4,25 +4,24 @@
 # 
 # 
 # Translators:
-# Aditoo, 2018
-# michal_s <msupler@gmail.com>, 2014-2015
+# Michal Šupler <msupler@gmail.com>, 2014-2015
 msgid ""
 msgstr ""
 "Project-Id-Version: friendica\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2013-02-27 05:01-0500\n"
-"PO-Revision-Date: 2018-07-03 14:45+0000\n"
-"Last-Translator: Aditoo\n"
-"Language-Team: Czech (http://www.transifex.com/Friendica/friendica/language/cs/)\n"
+"PO-Revision-Date: 2015-02-11 19:38+0000\n"
+"Last-Translator: Michal Šupler <msupler@gmail.com>\n"
+"Language-Team: Czech (http://www.transifex.com/projects/p/friendica/language/cs/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Language: cs\n"
-"Plural-Forms: nplurals=4; plural=(n == 1 && n % 1 == 0) ? 0 : (n >= 2 && n <= 4 && n % 1 == 0) ? 1: (n % 1 != 0 ) ? 2 : 3;\n"
+"Plural-Forms: nplurals=3; plural=(n==1) ? 0 : (n>=2 && n<=4) ? 1 : 2;\n"
 
 #: numfriends.php:46
 msgid "Numfriends settings updated."
-msgstr "Nastavení Numfriends aktualizováno"
+msgstr "Numfriends nastavení aktualizováno"
 
 #: numfriends.php:77
 msgid "Numfriends Settings"
@@ -30,7 +29,7 @@ msgstr "Nastavení Numfriends"
 
 #: numfriends.php:79
 msgid "How many contacts to display on profile sidebar"
-msgstr "Kolik kontaktů zobrazit na profilové postranní liště"
+msgstr "Kolik kontaktů zobrazit na profilovém bočním menu"
 
 #: numfriends.php:85
 msgid "Submit"
diff --git a/numfriends/lang/cs/strings.php b/numfriends/lang/cs/strings.php
index e8565071..32f2232b 100644
--- a/numfriends/lang/cs/strings.php
+++ b/numfriends/lang/cs/strings.php
@@ -2,11 +2,10 @@
 
 if(! function_exists("string_plural_select_cs")) {
 function string_plural_select_cs($n){
-	$n = intval($n);
-	return ($n == 1 && $n % 1 == 0) ? 0 : ($n >= 2 && $n <= 4 && $n % 1 == 0) ? 1: ($n % 1 != 0 ) ? 2 : 3;;
+	return ($n==1) ? 0 : ($n>=2 && $n<=4) ? 1 : 2;;
 }}
 ;
-$a->strings["Numfriends settings updated."] = "Nastavení Numfriends aktualizováno";
+$a->strings["Numfriends settings updated."] = "Numfriends nastavení aktualizováno";
 $a->strings["Numfriends Settings"] = "Nastavení Numfriends";
-$a->strings["How many contacts to display on profile sidebar"] = "Kolik kontaktů zobrazit na profilové postranní liště";
+$a->strings["How many contacts to display on profile sidebar"] = "Kolik kontaktů zobrazit na profilovém bočním menu";
 $a->strings["Submit"] = "Odeslat";
diff --git a/openstreetmap/openstreetmap.php b/openstreetmap/openstreetmap.php
index 974be0a0..0fe2a2fd 100644
--- a/openstreetmap/openstreetmap.php
+++ b/openstreetmap/openstreetmap.php
@@ -94,7 +94,7 @@ function openstreetmap_location($a, &$item)
 		}
 	}
 
-	if ($target == "") {
+	if (empty($target)) {
 		$target = $nomserver.'?q='.urlencode($item['location']);
 	}
 
diff --git a/public_server/lang/cs/messages.po b/public_server/lang/cs/messages.po
index c00d525b..6cd521a5 100644
--- a/public_server/lang/cs/messages.po
+++ b/public_server/lang/cs/messages.po
@@ -4,21 +4,20 @@
 # 
 # 
 # Translators:
-# Aditoo, 2018
-# michal_s <msupler@gmail.com>, 2014
+# Michal Šupler <msupler@gmail.com>, 2014
 msgid ""
 msgstr ""
 "Project-Id-Version: friendica\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2013-02-27 05:01-0500\n"
-"PO-Revision-Date: 2018-07-02 14:25+0000\n"
-"Last-Translator: Aditoo\n"
-"Language-Team: Czech (http://www.transifex.com/Friendica/friendica/language/cs/)\n"
+"PO-Revision-Date: 2014-10-15 09:02+0000\n"
+"Last-Translator: fabrixxm <fabrix.xm@gmail.com>\n"
+"Language-Team: Czech (http://www.transifex.com/projects/p/friendica/language/cs/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Language: cs\n"
-"Plural-Forms: nplurals=4; plural=(n == 1 && n % 1 == 0) ? 0 : (n >= 2 && n <= 4 && n % 1 == 0) ? 1: (n % 1 != 0 ) ? 2 : 3;\n"
+"Plural-Forms: nplurals=3; plural=(n==1) ? 0 : (n>=2 && n<=4) ? 1 : 2;\n"
 
 #: public_server.php:62
 msgid "Administrator"
@@ -31,7 +30,7 @@ msgstr "Platnost Vašeho účtu na %s vyprší během několika dní."
 
 #: public_server.php:127
 msgid "Your Friendica account is about to expire."
-msgstr "Váš účet na Frendica brzy vyprší."
+msgstr "Vašemu účetu Friendica brzy vyprší platnost"
 
 #: public_server.php:128
 #, php-format
@@ -39,4 +38,4 @@ msgid ""
 "Hi %1$s,\n"
 "\n"
 "Your account on %2$s will expire in less than five days. You may keep your account by logging in at least once every 30 days"
-msgstr "Dobrý den, %1$s,\n\nVáš účet na %2$s vyprší za méně než pět dní. Svůj účet si zachováte, pokud se přihlásíte alespoň jednou za každých 30 dní."
+msgstr "Ahoj %1$s,\n\nVáš účet na %2$s vyprší v méně než pěti dnech. Svůj účet si zachováte, pokud se přihlásíte alespoň jednou za každých 30 dní."
diff --git a/public_server/lang/cs/strings.php b/public_server/lang/cs/strings.php
index 0d6c5118..a4abe2da 100644
--- a/public_server/lang/cs/strings.php
+++ b/public_server/lang/cs/strings.php
@@ -1,12 +1,2 @@
 <?php
 
-if(! function_exists("string_plural_select_cs")) {
-function string_plural_select_cs($n){
-	$n = intval($n);
-	return ($n == 1 && $n % 1 == 0) ? 0 : ($n >= 2 && $n <= 4 && $n % 1 == 0) ? 1: ($n % 1 != 0 ) ? 2 : 3;;
-}}
-;
-$a->strings["Administrator"] = "Administrátor";
-$a->strings["Your account on %s will expire in a few days."] = "Platnost Vašeho účtu na %s vyprší během několika dní.";
-$a->strings["Your Friendica account is about to expire."] = "Váš účet na Frendica brzy vyprší.";
-$a->strings["Hi %1\$s,\n\nYour account on %2\$s will expire in less than five days. You may keep your account by logging in at least once every 30 days"] = "Dobrý den, %1\$s,\n\nVáš účet na %2\$s vyprší za méně než pět dní. Svůj účet si zachováte, pokud se přihlásíte alespoň jednou za každých 30 dní.";
diff --git a/pumpio/pumpio.php b/pumpio/pumpio.php
index 1b6469ed..9e02a74d 100644
--- a/pumpio/pumpio.php
+++ b/pumpio/pumpio.php
@@ -494,23 +494,23 @@ function pumpio_send(&$a, &$b)
 				'objectType' => "note",
 				'content' => $content];
 
-			if ($title != "") {
+			if (!empty($title)) {
 				$params["object"]["displayName"] = $title;
 			}
 
-			if (count($receiver["to"])) {
+			if (!empty($receiver["to"])) {
 				$params["to"] = $receiver["to"];
 			}
 
-			if (count($receiver["bto"])) {
+			if (!empty($receiver["bto"])) {
 				$params["bto"] = $receiver["bto"];
 			}
 
-			if (count($receiver["cc"])) {
+			if (!empty($receiver["cc"])) {
 				$params["cc"] = $receiver["cc"];
 			}
 
-			if (count($receiver["bcc"])) {
+			if (!empty($receiver["bcc"])) {
 				$params["bcc"] = $receiver["bcc"];
 			}
 		 } else {
@@ -654,8 +654,7 @@ function pumpio_action(&$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'] = $contactid;
@@ -1168,7 +1168,11 @@ function pumpio_dopost(&$a, $client, $uid, $self, $post, $own_id, $threadcomplet
 
 		$reply = new stdClass;
 		$reply->verb = "note";
-		$reply->cc = $post->cc;
+
+		if (isset($post->cc)) {
+			$reply->cc = $post->cc;
+		}
+
 		$reply->to = $post->to;
 		$reply->object = new stdClass;
 		$reply->object->objectType = $post->object->inReplyTo->objectType;
@@ -1186,7 +1190,7 @@ function pumpio_dopost(&$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;
 	}
 
@@ -1203,11 +1207,11 @@ 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"];
 	}
 
-	if ($post->object->displayName != "") {
+	if (!empty($post->object->displayName)) {
 		$postarray['title'] = $post->object->displayName;
 	}
 
@@ -1303,6 +1307,10 @@ function pumpio_fetchinbox(&$a, $uid)
 		$success = false;
 	}
 
+	if (!$success) {
+		return;
+	}
+
 	if ($user->items) {
 		$posts = array_reverse($user->items);
 
@@ -1587,9 +1595,9 @@ 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..d9baf1bd 100644
--- a/twitter/twitter.php
+++ b/twitter/twitter.php
@@ -422,6 +422,7 @@ function twitter_action(App $a, $uid, $pid, $action)
 	switch ($action) {
 		case "delete":
 			// To-Do: $result = $connection->post('statuses/destroy', $post);
+			$result = [];
 			break;
 		case "like":
 			$result = $connection->post('favorites/create', $post);
@@ -429,6 +430,9 @@ function twitter_action(App $a, $uid, $pid, $action)
 		case "unlike":
 			$result = $connection->post('favorites/destroy', $post);
 			break;
+		default:
+			logger('Unhandled action ' . $action, LOGGER_DEBUG);
+			$result = [];
 	}
 	logger("twitter_action '" . $action . "' send, result: " . print_r($result, true), LOGGER_DEBUG);
 }
@@ -799,7 +803,7 @@ 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);
 
@@ -1131,6 +1135,10 @@ function twitter_expand_entities(App $a, $body, $item, $picture)
 
 				$oembed_data = OEmbed::fetchURL($expanded_url);
 
+				if (empty($oembed_data) || empty($oembed_data->type)) {
+					continue;
+				}
+
 				// Quickfix: Workaround for URL with "[" and "]" in it
 				if (strpos($expanded_url, "[") || strpos($expanded_url, "]")) {
 					$expanded_url = $url->url;
@@ -1254,7 +1262,7 @@ 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 +1282,9 @@ 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 +1407,9 @@ 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 +1434,22 @@ 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']; // Activate for debugging
 		$retweet['private'] = $postarray['private'];
 		$retweet['allow_cid'] = $postarray['allow_cid'];
 		$retweet['contact-id'] = $postarray['contact-id'];
@@ -1446,7 +1460,7 @@ 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;
@@ -1498,20 +1512,16 @@ function twitter_fetchparentposts(App $a, $uid, $post, TwitterOAuth $connection,
 
 	$posts = array_reverse($posts);
 
-	if (count($posts)) {
+	if (!empty($posts)) {
 		foreach ($posts as $post) {
 			$postarray = twitter_createpost($a, $uid, $post, $self, false, false, false);
 
-			if (trim($postarray['body']) == "") {
+			if (empty($postarray['body'])) {
 				continue;
 			}
 
 			$item = Item::insert($postarray);
 
-			if ($notify) {
-				$item = $notify;
-			}
-
 			$postarray["id"] = $item;
 
 			logger('twitter_fetchparentpost: User ' . $self["nick"] . ' posted parent timeline item ' . $item);
@@ -1629,7 +1639,7 @@ 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;
 	}