From 826dfbd496bf6be050aa703c750dc716b251eb42 Mon Sep 17 00:00:00 2001
From: Cosmin-Romeo TANASE <romeo@studenttenant.com>
Date: Thu, 25 Jan 2018 06:29:19 +0000
Subject: [PATCH] [HttpFoundation] Use the correct syntax for session gc based
 on Pdo driver

---
 .../Session/Storage/Handler/PdoSessionHandler.php           | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/Symfony/Component/HttpFoundation/Session/Storage/Handler/PdoSessionHandler.php b/src/Symfony/Component/HttpFoundation/Session/Storage/Handler/PdoSessionHandler.php
index 15945644a4..dfd6651606 100644
--- a/src/Symfony/Component/HttpFoundation/Session/Storage/Handler/PdoSessionHandler.php
+++ b/src/Symfony/Component/HttpFoundation/Session/Storage/Handler/PdoSessionHandler.php
@@ -375,7 +375,11 @@ class PdoSessionHandler implements \SessionHandlerInterface
             $this->gcCalled = false;
 
             // delete the session records that have expired
-            $sql = "DELETE FROM $this->table WHERE $this->lifetimeCol < :time - $this->timeCol";
+            if ('mysql' === $this->driver) {
+                $sql = "DELETE FROM $this->table WHERE $this->lifetimeCol + $this->timeCol < :time";
+            } else {
+                $sql = "DELETE FROM $this->table WHERE $this->lifetimeCol < :time - $this->timeCol";
+            }
 
             $stmt = $this->pdo->prepare($sql);
             $stmt->bindValue(':time', time(), \PDO::PARAM_INT);