diff --git a/example/simple.php b/example/simple.php
index 5d02ac9..67cc38c 100644
--- a/example/simple.php
+++ b/example/simple.php
@@ -1,19 +1,21 @@
 <?php
 
+use OxidEsales\Eshop\Core\DatabaseProvider;
+
 require __DIR__ . '/../../../../source/bootstrap.php';
 
-\D3StartSQLLog('Query for 100 items cheaper than 49,99');
+D3StartSQLLog( 'Query for 100 items cheaper than 49,99');
 
-$db = \OxidEsales\Eshop\Core\DatabaseProvider::getDb(\OxidEsales\Eshop\Core\DatabaseProvider::FETCH_MODE_ASSOC);
+$db = DatabaseProvider::getDb( DatabaseProvider::FETCH_MODE_ASSOC);
 $list = $db->getAll('SELECT * '.PHP_EOL.'FROM oxarticles WHERE oxprice < ? LIMIT 100', [49.99]);
 
-\D3StopSQLLog();
+D3StopSQLLog();
 
 // or
 
-\D3StartSQLLog();
+D3StartSQLLog();
 
-$db = \OxidEsales\Eshop\Core\DatabaseProvider::getDb(\OxidEsales\Eshop\Core\DatabaseProvider::FETCH_MODE_ASSOC);
+$db = DatabaseProvider::getDb( DatabaseProvider::FETCH_MODE_ASSOC);
 $list = $db->getAll('SELECT * FROM oxarticles WHERE oxprice < ? LIMIT 100', [49.99]);
 
-\D3StopSQLLog();
+D3StopSQLLog();
diff --git a/src/Extensions/d3FirePHP.php b/src/Extensions/d3FirePHP.php
index dca9725..c61d571 100644
--- a/src/Extensions/d3FirePHP.php
+++ b/src/Extensions/d3FirePHP.php
@@ -18,7 +18,8 @@ namespace D3\OxidSqlLogger\Extensions;
 use D3\OxidSqlLogger\Handler\d3FirePHPHandler;
 use D3\OxidSqlLogger\OxidSQLLogger;
 use Doctrine\DBAL\Connection;
-use \FirePHP;
+use Exception;
+use FirePHP;
 use Monolog\Handler\AbstractProcessingHandler;
 use Monolog\Logger;
 use OxidEsales\EshopCommunity\Core\Database\Adapter\Doctrine\Database;
diff --git a/src/Handler/d3FirePHPHandler.php b/src/Handler/d3FirePHPHandler.php
index a007860..86871d0 100644
--- a/src/Handler/d3FirePHPHandler.php
+++ b/src/Handler/d3FirePHPHandler.php
@@ -16,15 +16,22 @@
 namespace D3\OxidSqlLogger\Handler;
 
 use D3\OxidSqlLogger\Extensions\d3FirePHP;
+use Exception;
+use Monolog\Handler\AbstractProcessingHandler;
 use OxidEsales\Eshop\Core\Registry;
 
-class d3FirePHPHandler extends \Monolog\Handler\AbstractProcessingHandler
+class d3FirePHPHandler extends AbstractProcessingHandler
 {
     const ADD_TRACE = 'addTrace';
-    
+
+    /**
+     * @param array $record
+     *
+     * @throws Exception
+     */
     protected function write(array $record): void
     {
-        $options = Registry::getConfig()->getConfigParam(d3FirePHPOptions);
+        $options = Registry::getConfig()->getConfigParam('d3FirePHPOptions');
         $options = isset($options) && is_array($options) ? $options : [];
 
         $fp = d3FirePHP::getInstance(true);
@@ -36,7 +43,7 @@ class d3FirePHPHandler extends \Monolog\Handler\AbstractProcessingHandler
         $fp->log( $record['formatted'], $record['message']);
 
         if (in_array(self::ADD_TRACE, $options)) {
-            $fp->trace( 'trace', 'trace' );
+            $fp->trace( 'trace');
             $fp->groupEnd();
         }
     }
diff --git a/src/LoggerFactory.php b/src/LoggerFactory.php
index e9b763f..a905cf6 100644
--- a/src/LoggerFactory.php
+++ b/src/LoggerFactory.php
@@ -10,6 +10,7 @@ namespace D3\OxidSqlLogger;
 use Monolog;
 use OxidEsales\Eshop\Core\Registry;
 use Symfony\Component\Console\Formatter\OutputFormatterStyle;
+use Traversable;
 
 /**
  * Class Factory
@@ -77,7 +78,7 @@ class LoggerFactory
     {
         return function_exists('is_iterable') ?
             is_iterable($obj) :
-            is_array($obj) || (is_object($obj) && ($obj instanceof \Traversable));
+            is_array($obj) || ( $obj instanceof Traversable);
     }
 
     /**
@@ -93,7 +94,7 @@ class LoggerFactory
         $context    = (new OutputFormatterStyle('yellow'))->apply('%context%');
         $newline    = PHP_EOL . str_repeat(' ', 10);
 
-        $ttl_color = "$channel $level_name: $message {$newline} $context {$newline} %extra%" . PHP_EOL;
+        $ttl_color = "$channel $level_name: $message $newline $context $newline %extra%" . PHP_EOL;
 
         $streamHandler->setFormatter(
             new Monolog\Formatter\LineFormatter(
diff --git a/src/OxidEsalesDatabase.php b/src/OxidEsalesDatabase.php
index 6101d92..a72db7e 100644
--- a/src/OxidEsalesDatabase.php
+++ b/src/OxidEsalesDatabase.php
@@ -9,17 +9,20 @@ namespace D3\OxidSqlLogger;
 
 use Doctrine\DBAL\Configuration;
 use Doctrine\DBAL\Logging\SQLLogger;
+use OxidEsales\Eshop\Core\Database\Adapter\Doctrine\Database;
+use OxidEsales\Eshop\Core\DatabaseProvider;
+use OxidEsales\Eshop\Core\Exception\DatabaseConnectionException;
 
 /**
  * Class OxidEsalesDatabase
  * Is a depenction injection Helper Class
  */
-class OxidEsalesDatabase extends \OxidEsales\Eshop\Core\Database\Adapter\Doctrine\Database
+class OxidEsalesDatabase extends Database
 {
     /**
      * @param null $message
      *
-     * @throws \OxidEsales\Eshop\Core\Exception\DatabaseConnectionException
+     * @throws DatabaseConnectionException
      * @deprecated use non static d3EnableLogger method or D3StartSQLLog function
      */
     public static function enableLogger($message = null)
@@ -29,21 +32,21 @@ class OxidEsalesDatabase extends \OxidEsales\Eshop\Core\Database\Adapter\Doctrin
     }
 
     /**
-     * @throws \OxidEsales\Eshop\Core\Exception\DatabaseConnectionException
+     * @throws DatabaseConnectionException
      */
     public function d3EnableLogger($message)
     {
         $trace = debug_backtrace((PHP_VERSION_ID < 50306) ? 2 : DEBUG_BACKTRACE_IGNORE_ARGS);
 
-        $database = \OxidEsales\Eshop\Core\DatabaseProvider::getDb(\OxidEsales\Eshop\Core\DatabaseProvider::FETCH_MODE_ASSOC);
+        $database = DatabaseProvider::getDb( DatabaseProvider::FETCH_MODE_ASSOC);
         /** @var Configuration $dbalConfig */
         $dbalConfig = $database->getConnection()->getConfiguration();
         $dbalConfig->setSQLLogger(
             new OxidSQLLogger(
-                isset($trace[1]['file']) ? $trace[1]['file'] : null,
-                isset($trace[1]['line']) ? $trace[1]['line'] : null,
-                isset($trace[2]['class']) ? $trace[2]['class'] : null,
-                isset($trace[2]['function']) ? $trace[2]['function'] : null,
+                $trace[1]['file'] ?? null,
+                $trace[1]['line'] ?? null,
+                $trace[2]['class'] ?? null,
+                $trace[2]['function'] ?? null,
                 $message
             )
         );
@@ -51,7 +54,7 @@ class OxidEsalesDatabase extends \OxidEsales\Eshop\Core\Database\Adapter\Doctrin
 
     /**
      * @return SQLLogger|null
-     * @throws \OxidEsales\Eshop\Core\Exception\DatabaseConnectionException
+     * @throws DatabaseConnectionException
      * @deprecated use non static d3GetLogger method
      */
     public static function getLogger()
@@ -62,18 +65,18 @@ class OxidEsalesDatabase extends \OxidEsales\Eshop\Core\Database\Adapter\Doctrin
 
     /**
      * @return SQLLogger|null
-     * @throws \OxidEsales\Eshop\Core\Exception\DatabaseConnectionException
+     * @throws DatabaseConnectionException
      */
     public function d3GetLogger()
     {
-        $database = \OxidEsales\Eshop\Core\DatabaseProvider::getDb(\OxidEsales\Eshop\Core\DatabaseProvider::FETCH_MODE_ASSOC);
+        $database = DatabaseProvider::getDb( DatabaseProvider::FETCH_MODE_ASSOC);
         /** @var Configuration $dbalConfig */
         $dbalConfig = $database->getConnection()->getConfiguration();
         return $dbalConfig->getSQLLogger();
     }
 
     /**
-     * @throws \OxidEsales\Eshop\Core\Exception\DatabaseConnectionException
+     * @throws DatabaseConnectionException
      * @deprecated use non static d3DisableLogger method or D3StopSQLLog function
      */
     public static function disableLogger()
@@ -83,13 +86,13 @@ class OxidEsalesDatabase extends \OxidEsales\Eshop\Core\Database\Adapter\Doctrin
     }
 
     /**
-     * @throws \OxidEsales\Eshop\Core\Exception\DatabaseConnectionException
+     * @throws DatabaseConnectionException
      */
     public function d3DisableLogger()
     {
-        $database = \OxidEsales\Eshop\Core\DatabaseProvider::getDb(\OxidEsales\Eshop\Core\DatabaseProvider::FETCH_MODE_ASSOC);
+        $database = DatabaseProvider::getDb( DatabaseProvider::FETCH_MODE_ASSOC);
         /** @var Configuration $dbalConfig */
         $dbalConfig = $database->getConnection()->getConfiguration();
-        $dbalConfig->setSQLLogger(null);
+        $dbalConfig->setSQLLogger();
     }
 }
diff --git a/src/OxidSQLLogger.php b/src/OxidSQLLogger.php
index 084f32a..6f2fd54 100644
--- a/src/OxidSQLLogger.php
+++ b/src/OxidSQLLogger.php
@@ -11,6 +11,7 @@ use D3\ModCfg\Application\Model\d3database;
 use Doctrine\DBAL\Logging\SQLLogger;
 use Monolog;
 use NilPortugues\Sql\QueryFormatter\Formatter;
+use OxidEsales\Eshop\Core\Exception\DatabaseConnectionException;
 
 /**
  * Class OxidSQLLogger
@@ -29,7 +30,11 @@ class OxidSQLLogger implements SQLLogger
     private $SQLQuery = null;
 
     /**
-     * @inheritDoc
+     * @param      $file
+     * @param      $line
+     * @param      $class
+     * @param      $function
+     * @param null $message
      */
     public function __construct($file, $line, $class, $function, $message = null)
     {
@@ -45,7 +50,11 @@ class OxidSQLLogger implements SQLLogger
     }
 
     /**
-     * @inheritDoc
+     * @param string     $sql
+     * @param array|null $params
+     * @param array|null $types
+     *
+     * @throws DatabaseConnectionException
      */
     public function startQuery($sql, array $params = null, array $types = null)
     {
@@ -68,9 +77,9 @@ class OxidSQLLogger implements SQLLogger
     /**
      * @param string $sql
      * @param array $params
-     * @throws \OxidEsales\Eshop\Core\Exception\DatabaseConnectionException
+     * @throws DatabaseConnectionException
      */
-    public function getPreparedStatementQuery(&$sql, $params = [])
+    public function getPreparedStatementQuery(&$sql, array $params = [])
     {
         if (class_exists(d3database::class)
             && method_exists(d3database::class, 'getPreparedStatementQuery')
@@ -92,7 +101,7 @@ class OxidSQLLogger implements SQLLogger
             $formatter = new Formatter();
 
             Monolog\Registry::sql()->addDebug(
-                '['.$this->SQLQuery->getReadableElapsedTime().'] ' . ( $this->message ? $this->message : $this->SQLQuery->getSql() ),
+                '['.$this->SQLQuery->getReadableElapsedTime().'] ' . ( $this->message ?: $this->SQLQuery->getSql() ),
                 [
                     'query' => $formatter->format($this->SQLQuery->getSql()),
                     'params' => $this->SQLQuery->getParams(),
diff --git a/src/SQLQuery.php b/src/SQLQuery.php
index 0b61fb1..3f17d36 100644
--- a/src/SQLQuery.php
+++ b/src/SQLQuery.php
@@ -16,7 +16,7 @@ class SQLQuery
     /**
      * @var float|null
      */
-    private $start_time = null;
+    private $start_time;
 
     /**
      * @var float|null
@@ -46,9 +46,6 @@ class SQLQuery
     
     private $logStartingFunction;
 
-    /**
-     * @inheritDoc
-     */
     public function __construct()
     {
         $this->start_time = microtime(true);
@@ -224,6 +221,7 @@ class SQLQuery
      *
      * @param  float $microtime
      * @param  string  $format   The format to display (printf format)
+     * @param int $round
      * @return string
      */
     private function readableElapsedTime($microtime, $format = '%.3f%s', $round = 3)
diff --git a/src/functions.php b/src/functions.php
index fdc0f83..0be0b87 100644
--- a/src/functions.php
+++ b/src/functions.php
@@ -1,27 +1,43 @@
 <?php
 
+use D3\OxidSqlLogger\OxidEsalesDatabase;
+use OxidEsales\Eshop\Core\Exception\DatabaseConnectionException;
+
 /**
  * @author    Tobias Matthaiou <developer@tobimat.eu>
  * @author    D3 Data Development - Daniel Seifert <support@shopmodule.com>
  */
 
+/**
+ * @param string $message
+ *
+ * @throws DatabaseConnectionException
+ */
 function D3StartSQLLog($message = null) {
-    /** @var \D3\OxidSqlLogger\OxidEsalesDatabase $database */
-    $database = oxNew(\D3\OxidSqlLogger\OxidEsalesDatabase::class);
+    /** @var OxidEsalesDatabase $database */
+    $database = oxNew( OxidEsalesDatabase::class);
     $database->d3EnableLogger($message);
 }
 
+/**
+ * @throws DatabaseConnectionException
+ */
 function D3StopSQLLog()
 {
-    /** @var \D3\OxidSqlLogger\OxidEsalesDatabase $database */
-    $database = oxNew(\D3\OxidSqlLogger\OxidEsalesDatabase::class);
+    /** @var OxidEsalesDatabase $database */
+    $database = oxNew( OxidEsalesDatabase::class);
     $database->d3DisableLogger();
 }
 
+/**
+ * @param $message
+ *
+ * @throws DatabaseConnectionException
+ */
 function D3AddSQLLogItem($message)
 {
-    /** @var \D3\OxidSqlLogger\OxidEsalesDatabase $database */
-    $database = oxNew(\D3\OxidSqlLogger\OxidEsalesDatabase::class);
+    /** @var OxidEsalesDatabase $database */
+    $database = oxNew( OxidEsalesDatabase::class);
     $database->d3GetLogger()->startQuery($message);
-    $database->d3GetLogger()->stopQuery($message);
+    $database->d3GetLogger()->stopQuery();
 }