fixed array declarations

lib/Doctrine/DBAL/Connections/MasterSlaveConnection.php

@@ -87,7 +87,7 @@ class MasterSlaveConnection extends Connection
      *
      * @var \Doctrine\DBAL\Driver\Connection[]
      */
-    protected $connections = array('master' => null, 'slave' => null);
+    protected $connections = ['master' => null, 'slave' => null];
 
     /**
      * You can keep the slave connection and then switch back to it
@@ -202,7 +202,7 @@ protected function connectTo($connectionName)
     {
         $params = $this->getParams();
 
-        $driverOptions = isset($params['driverOptions']) ? $params['driverOptions'] : array();
+        $driverOptions = isset($params['driverOptions']) ? $params['driverOptions'] : [];
 
         $connectionParams = $this->chooseConnectionConfiguration($connectionName, $params);
 
@@ -230,7 +230,7 @@ protected function chooseConnectionConfiguration($connectionName, $params)
     /**
      * {@inheritDoc}
      */
-    public function executeUpdate($query, array $params = array(), array $types = array())
+    public function executeUpdate($query, array $params = [], array $types = [])
     {
         $this->connect('master');
 
@@ -270,7 +270,7 @@ public function rollBack()
     /**
      * {@inheritDoc}
      */
-    public function delete($tableName, array $identifier, array $types = array())
+    public function delete($tableName, array $identifier, array $types = [])
     {
         $this->connect('master');
 
@@ -294,7 +294,7 @@ public function close()
     /**
      * {@inheritDoc}
      */
-    public function update($tableName, array $data, array $identifier, array $types = array())
+    public function update($tableName, array $data, array $identifier, array $types = [])
     {
         $this->connect('master');
 
@@ -304,7 +304,7 @@ public function update($tableName, array $data, array $identifier, array $types
     /**
      * {@inheritDoc}
      */
-    public function insert($tableName, array $data, array $types = array())
+    public function insert($tableName, array $data, array $types = [])
     {
         $this->connect('master');