symfony
diff --git a/Collapse file
‎src/Symfony/Component/Cache/Adapter/PdoAdapter.php‎
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+2-2Lines changed: 2 additions & 2 deletions b/Collapse file
‎src/Symfony/Component/Cache/Adapter/PdoAdapter.php‎
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+2-2Lines changed: 2 additions & 2 deletions
diff --git a/Collapse file
‎src/Symfony/Component/HttpFoundation/Session/Storage/Handler/PdoSessionHandler.php‎
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+4-4Lines changed: 4 additions & 4 deletions b/Collapse file
‎src/Symfony/Component/HttpFoundation/Session/Storage/Handler/PdoSessionHandler.php‎
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+4-4Lines changed: 4 additions & 4 deletions
diff --git a/Collapse file
‎src/Symfony/Component/Lock/Store/PdoStore.php‎
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+2-2Lines changed: 2 additions & 2 deletions b/Collapse file
‎src/Symfony/Component/Lock/Store/PdoStore.php‎
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+2-2Lines changed: 2 additions & 2 deletions
diff --git a/Collapse file
‎src/Symfony/Component/Lock/Store/PostgreSqlStore.php‎
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+2-2Lines changed: 2 additions & 2 deletions b/Collapse file
‎src/Symfony/Component/Lock/Store/PostgreSqlStore.php‎
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+2-2Lines changed: 2 additions & 2 deletions
@@ -34,8 +34,8 @@ class PdoAdapter extends AbstractAdapter implements PruneableInterface
     private $dataCol = 'item_data';
     private $lifetimeCol = 'item_lifetime';
     private $timeCol = 'item_time';
-    private $username = '';
-    private $password = '';
+    private $username = null;
+    private $password = null;
     private $connectionOptions = [];
     private $namespace;
 
 
@@ -112,16 +112,16 @@ class PdoSessionHandler extends AbstractSessionHandler
     /**
      * Username when lazy-connect.
      *
-     * @var string
+     * @var string|null
      */
-    private $username = '';
+    private $username = null;
 
     /**
      * Password when lazy-connect.
      *
-     * @var string
+     * @var string|null
      */
-    private $password = '';
+    private $password = null;
 
     /**
      * Connection options when lazy-connect.
 
@@ -40,8 +40,8 @@ class PdoStore implements PersistingStoreInterface
     private $conn;
     private $dsn;
     private $driver;
-    private $username = '';
-    private $password = '';
+    private $username = null;
+    private $password = null;
     private $connectionOptions = [];
 
     private $dbalStore;
 
@@ -29,8 +29,8 @@ class PostgreSqlStore implements BlockingSharedLockStoreInterface, BlockingStore
 {
     private $conn;
     private $dsn;
-    private $username = '';
-    private $password = '';
+    private $username = null;
+    private $password = null;
     private $connectionOptions = [];
     private static $storeRegistry = [];