Fixed minor coding style issues

framework/db/sqlite/QueryBuilder.php

@@ -111,9 +111,9 @@ class QueryBuilder extends \yii\db\QueryBuilder
 				$value = (int)$value - 1;
 			}
 			try {
-				// it's possible sqlite_sequence does not exist
 				$db->createCommand("UPDATE sqlite_sequence SET seq='$value' WHERE name='{$table->name}'")->execute();
 			} catch (Exception $e) {
+				// it's possible that sqlite_sequence does not exist
 			}
 		} elseif ($table === null) {
 			throw new InvalidParamException("Table not found: $tableName");

framework/helpers/BaseConsole.php

@@ -422,7 +422,7 @@ class BaseConsole
 
 					$styleA = ArrayHelper::merge($styleA, $style);
 				}
-				$styleString[] = [];
+				$styleString = [];
 				foreach ($styleA as $name => $content) {
 					if ($name === 'text-decoration') {
 						$content = implode(' ', $content);

framework/widgets/ActiveField.php

@@ -616,6 +616,8 @@ class ActiveField extends Component
 			return [];
 		}
 
+		$options = [];
+
 		$enableClientValidation = $this->enableClientValidation || $this->enableClientValidation === null && $this->form->enableClientValidation;
 		if ($enableClientValidation) {
 			$validators = [];