diff --git a/src/Core/Base/Timestamp.php b/src/Core/Base/Timestamp.php
index 96cd7685ad..2ed1561eea 100644
--- a/src/Core/Base/Timestamp.php
+++ b/src/Core/Base/Timestamp.php
@@ -64,19 +64,6 @@ public function __construct($dateTime, \DateTimeZone $zone=null)
 
 	}
 
-	private function getDefaultTimeZone()
-	{
-		try {
-			$defaultTimeZoneName = date_default_timezone_get();
-			return new \DateTimeZone($defaultTimeZoneName);
-		} catch(\Exception $e) {
-			throw new WrongStateException(
-				"strange default time zone given - '{$defaultTimeZoneName}'!".
-				'Use date_default_timezone_set() for set valid default time zone.'
-			);
-		}
-	}
-
 	public function toTime($timeDelimiter = ':', $secondDelimiter = '.')
 	{
 		return
diff --git a/src/Core/Cache/AggregateCache.php b/src/Core/Cache/AggregateCache.php
index 00e74c3bac..2ad5b517e6 100644
--- a/src/Core/Cache/AggregateCache.php
+++ b/src/Core/Cache/AggregateCache.php
@@ -73,7 +73,7 @@ protected function guessLabel($key)
 		}
 
 		// init by $key, randomness will be restored later
-		mt_srand(hexdec(substr(md5($key), 3, 7)));
+		mt_srand(intval(hexdec(substr(md5($key), 3, 7))));
 
 		$zeroDistances = array();
 		$weights = array();
diff --git a/src/Core/Form/FormUtils.php b/src/Core/Form/FormUtils.php
index 5d95f82f38..e18f8970fc 100644
--- a/src/Core/Form/FormUtils.php
+++ b/src/Core/Form/FormUtils.php
@@ -34,7 +34,7 @@ final class FormUtils extends StaticFactory
 			$proto = $object->proto();
 
 			foreach (array_keys($proto->getExpandedPropertyList()) as $name) {
-				if ($form->primitiveExists($name)) {
+				if ($form->exists($name)) {
 					$proto->importPrimitive(
 						$name,
 						$form,
diff --git a/src/Core/Form/MappedForm.php b/src/Core/Form/MappedForm.php
index 7cb1a54935..7fd62b515b 100644
--- a/src/Core/Form/MappedForm.php
+++ b/src/Core/Form/MappedForm.php
@@ -144,7 +144,7 @@ public function export(RequestType $type)
 	**/
 	private function checkExistence($name)
 	{
-		if (!$this->form->primitiveExists($name))
+		if (!$this->form->exists($name))
 			throw new MissingElementException(
 				"there is no '{$name}' primitive"
 			);
diff --git a/src/Core/Form/Primitives/DateRangeList.php b/src/Core/Form/Primitives/DateRangeList.php
index 1e9435c7e7..835420ac5e 100644
--- a/src/Core/Form/Primitives/DateRangeList.php
+++ b/src/Core/Form/Primitives/DateRangeList.php
@@ -123,13 +123,9 @@ public static function makeRange($string)
 
 			if ($start || $finish) {
 
-				$range = new DateRange();
-
-				$range =
+				return
 					DateRange::create()->
-					lazySet($start, $finish);
-
-				return $range;
+						lazySet($start, $finish);
 
 			} elseif (trim($string) == '-')
 				return DateRange::create();
diff --git a/src/Core/Form/Primitives/PrimitiveDateRange.php b/src/Core/Form/Primitives/PrimitiveDateRange.php
index 0b2884a66e..a147bf2c8f 100644
--- a/src/Core/Form/Primitives/PrimitiveDateRange.php
+++ b/src/Core/Form/Primitives/PrimitiveDateRange.php
@@ -82,7 +82,6 @@ public function importValue($value)
 	public function import($scope)
 	{
 		if (parent::import($scope)) {
-			$listName = $this->getObjectName().'List';
 			try {
 				$range = $this->makeRange($scope[$this->name]);
 			} catch (WrongArgumentException $e) {
diff --git a/src/Core/Form/Primitives/TimeList.php b/src/Core/Form/Primitives/TimeList.php
index def6ac9e49..e3b2c4eaec 100644
--- a/src/Core/Form/Primitives/TimeList.php
+++ b/src/Core/Form/Primitives/TimeList.php
@@ -87,7 +87,7 @@ public static function stringToTimeList($string)
 	{
 		$list = array();
 
-		$times = split("([,; \n]+)", $string);
+		$times = preg_split("([,; \n]+)", $string);
 
 		for ($i = 0, $size = count($times); $i < $size; ++$i) {
 			$time = mb_ereg_replace('[^0-9:]', ':', $times[$i]);
diff --git a/src/Main/Charts/Google/GoogleChart.php b/src/Main/Charts/Google/GoogleChart.php
index 26e661bca2..58fd10dfe7 100644
--- a/src/Main/Charts/Google/GoogleChart.php
+++ b/src/Main/Charts/Google/GoogleChart.php
@@ -160,7 +160,7 @@ public function toString()
 		$url = self::BASE_URL;
 
 		Assert::isNotNull($this->type);
-		$parameters[] = $this->type->toString();
+		$parameters = array($this->type->toString());
 
 		Assert::isNotNull($this->size);
 		$parameters[] = $this->size->toString();
diff --git a/src/Main/Charts/Google/GoogleChartLabelStyle.php b/src/Main/Charts/Google/GoogleChartLabelStyle.php
index f113adecbb..2764affab0 100644
--- a/src/Main/Charts/Google/GoogleChartLabelStyle.php
+++ b/src/Main/Charts/Google/GoogleChartLabelStyle.php
@@ -49,8 +49,6 @@ public function toString()
 
 		Assert::isNotEmptyArray($this->styles);
 
-		$i = 0;
-
 		foreach ($this->styles as $style)
 			$queryString .= $style->toString().'|';
 
diff --git a/src/Main/Charts/Google/GoogleChartSolidFillCollection.php b/src/Main/Charts/Google/GoogleChartSolidFillCollection.php
index 3445631132..ebdec62dab 100644
--- a/src/Main/Charts/Google/GoogleChartSolidFillCollection.php
+++ b/src/Main/Charts/Google/GoogleChartSolidFillCollection.php
@@ -46,6 +46,7 @@ public function toString()
 	{
 		$fillerString = GoogleChartSolidFill::getParamName().'=';
 
+		$filters = array();
 		foreach ($this->fillers as $filler)
 			$fillers[] = $filler->toString();
 
diff --git a/src/Main/Criteria/Criteria.php b/src/Main/Criteria/Criteria.php
index 3990d43d99..7f49622378 100644
--- a/src/Main/Criteria/Criteria.php
+++ b/src/Main/Criteria/Criteria.php
@@ -664,16 +664,5 @@ private function joinProperties(
 			}
 		}
 	}
-
-	/**
-	 * @return AbstractProtoClass
-	**/
-	private function getProto()
-	{
-		return
-			call_user_func(
-				array($this->checkAndGetDao()->getObjectName(), 'proto')
-			);
-	}
 }
 ?>
diff --git a/src/Main/DAO/ProtoDAO.php b/src/Main/DAO/ProtoDAO.php
index 7dc1eb19e9..0e5015ee49 100644
--- a/src/Main/DAO/ProtoDAO.php
+++ b/src/Main/DAO/ProtoDAO.php
@@ -77,7 +77,6 @@ public function fetchCollections(
 			$propertyPath = $info['propertyPath'];
 
 			$property	= $propertyPath->getFinalProperty();
-			$proto		= $propertyPath->getFinalProto();
 			$dao		= $propertyPath->getFinalDao();
 
 			$selfName = $this->getObjectName();
diff --git a/src/Main/DAO/Uncacher/UncacherTaggableDaoWorker.php b/src/Main/DAO/Uncacher/UncacherTaggableDaoWorker.php
index ec80a0b9e9..a7f1df8f66 100644
--- a/src/Main/DAO/Uncacher/UncacherTaggableDaoWorker.php
+++ b/src/Main/DAO/Uncacher/UncacherTaggableDaoWorker.php
@@ -62,7 +62,7 @@ public function uncache()
 			$worker->expireTags($tags);
 
 			foreach ($idKeys as $key)
-				Cache::me()->mark($className)->delete($idKey);
+				Cache::me()->mark($className)->delete($key);
 
 			ClassUtils::callStaticMethod("$className::dao")->uncacheLists();
 		}
diff --git a/src/Main/DAO/Worker/SmartDaoWorker.php b/src/Main/DAO/Worker/SmartDaoWorker.php
index 06d5cc4bba..0afe7ec3a3 100644
--- a/src/Main/DAO/Worker/SmartDaoWorker.php
+++ b/src/Main/DAO/Worker/SmartDaoWorker.php
@@ -49,8 +49,6 @@ protected function cacheByQuery(
 		$expires = Cache::EXPIRES_FOREVER
 	)
 	{
-		$queryId = $query->getId();
-
 		$semKey = $this->keyToInt($this->indexKey);
 
 		$key = $this->makeQueryKey($query, self::SUFFIX_QUERY);
diff --git a/src/Main/EntityProto/EntityProto.php b/src/Main/EntityProto/EntityProto.php
index 6ae9f00db2..9a312e7e6d 100644
--- a/src/Main/EntityProto/EntityProto.php
+++ b/src/Main/EntityProto/EntityProto.php
@@ -118,8 +118,6 @@ final public function validateSelf(
 					? $previousGetter->get($id)
 					: null;
 
-				$childResult = true;
-
 				if (
 					$child
 					&& !$proto->validate(
diff --git a/src/Main/Markup/Html/HtmlTokenizer.php b/src/Main/Markup/Html/HtmlTokenizer.php
index fb308fb2d5..c5914209ea 100644
--- a/src/Main/Markup/Html/HtmlTokenizer.php
+++ b/src/Main/Markup/Html/HtmlTokenizer.php
@@ -284,28 +284,6 @@ private function reset()
 		return $this;
 	}
 
-	/**
-	 * @return HtmlTokenizer
-	**/
-	private function skip($count)
-	{
-		for ($i = 0; $i < $count; ++$i)
-			$this->getNextChar();
-
-		return $this;
-	}
-
-	private function lookAhead($count)
-	{
-		$this->stream->mark();
-
-		$result = $this->stream->read($count);
-
-		$this->stream->reset();
-
-		return $result;
-	}
-
 	private function skipString($string, $skipSpaces = false)
 	{
 		$this->mark();
diff --git a/src/Main/Math/MathUtils.php b/src/Main/Math/MathUtils.php
index 45106e03fb..95d6fe08a4 100644
--- a/src/Main/Math/MathUtils.php
+++ b/src/Main/Math/MathUtils.php
@@ -49,6 +49,7 @@ public static function makeCartesianProduct(
 			$size *= sizeof($array);
 
 		$keys = array_keys($arrays);
+		$tmpArrays = array();
 
 		foreach ($keys as $key)
 			$tmpArrays[] = $arrays[$key];
@@ -86,6 +87,7 @@ public static function applyFunctorToCartesianProduct(
 			$size *= sizeof($array);
 
 		$keys = array_keys($arrays);
+		$tmpArrays = array();
 
 		foreach ($keys as $key)
 			$tmpArrays[] = $arrays[$key];
diff --git a/src/Main/Util/ClassUtils.php b/src/Main/Util/ClassUtils.php
index 4f24ad8c19..599987ec24 100644
--- a/src/Main/Util/ClassUtils.php
+++ b/src/Main/Util/ClassUtils.php
@@ -137,23 +137,7 @@ public static function isSameClassNames($left, $right)
 	/// to avoid dependency on SPL's class_implements
 	public static function isClassImplements($what)
 	{
-		static $classImplements = null;
-
-		if (!$classImplements) {
-			if (!function_exists('class_implements')) {
-				$classImplements = create_function(
-					'$what',
-					'
-						$info = new \ReflectionClass($what);
-						return $info->getInterfaceNames();
-					'
-				);
-			} else {
-				$classImplements = 'class_implements';
-			}
-		}
-
-		return $classImplements($what, true);
+		return class_implements($what, true);
 	}
 
 	public static function isInstanceOf($object, $class)
diff --git a/src/Meta/Console/MetaOutput.php b/src/Meta/Console/MetaOutput.php
index 52793e0e9e..5ff6ce3f30 100644
--- a/src/Meta/Console/MetaOutput.php
+++ b/src/Meta/Console/MetaOutput.php
@@ -94,7 +94,7 @@ public function warningLine($text)
 	**/
 	public function error($text, $bold = false)
 	{
-		return $this->errorText($text, ConsoleMode::FG_RED, $bold);
+		return $this->errorText($text);
 	}
 
 	/**
@@ -102,7 +102,7 @@ public function error($text, $bold = false)
 	**/
 	public function errorLine($text, $bold = false)
 	{
-		return $this->errorTextLine($text, ConsoleMode::FG_RED, $bold);
+		return $this->errorTextLine($text);
 	}
 
 	/**
@@ -162,7 +162,7 @@ private function defaultTextLine($text, $color, $bold)
 	/**
 	 * @return MetaOutput
 	**/
-	private function errorText($text, $color, $bold)
+	private function errorText($text)
 	{
 		if ($this->out instanceof ColoredTextOutput)
 			$text = $this->out->wrapString($text);
@@ -175,7 +175,7 @@ private function errorText($text, $color, $bold)
 	/**
 	 * @return MetaOutput
 	**/
-	private function errorTextLine($text, $color, $bold)
+	private function errorTextLine($text)
 	{
 		if ($this->out instanceof ColoredTextOutput)
 			$text = $this->out->wrapString($text);
diff --git a/src/Meta/Entity/MetaClassProperty.php b/src/Meta/Entity/MetaClassProperty.php
index d356c0b31a..f257189cd7 100644
--- a/src/Meta/Entity/MetaClassProperty.php
+++ b/src/Meta/Entity/MetaClassProperty.php
@@ -546,10 +546,5 @@ private function buildColumn($columnName)
 			
 		return $column;
 	}
-		
-	private function toVarName($name)
-	{
-		return strtolower($name[0]).substr($name, 1);
-	}
 }
 ?>
\ No newline at end of file
diff --git a/src/Meta/Entity/MetaConfiguration.php b/src/Meta/Entity/MetaConfiguration.php
index 6a6610f822..c0e7b3d91a 100644
--- a/src/Meta/Entity/MetaConfiguration.php
+++ b/src/Meta/Entity/MetaConfiguration.php
@@ -430,7 +430,6 @@ public function buildContainers()
 					&& ($property->getRelationId() != MetaRelation::ONE_TO_ONE)
 				) {
 					$relation = $class->getName() . ucfirst($property->getName()) . 'DAO';
-					$userFile1 = NamespaceUtils::getDAODir($class) . DIRECTORY_SEPARATOR . $relation . EXT_CLASS;
 					$userFile =
 						ONPHP_META_DAO_DIR
 						.$class->getName().ucfirst($property->getName())