Cast ini_get to an integer to match expected type

Author: Nate Wiebe

Session/Storage/MetadataBag.php

@@ -163,6 +163,6 @@ private function stampCreated(int $lifetime = null): void
     {
         $timeStamp = time();
         $this->meta[self::CREATED] = $this->meta[self::UPDATED] = $this->lastUsed = $timeStamp;
-        $this->meta[self::LIFETIME] = $lifetime ?? ini_get('session.cookie_lifetime');
+        $this->meta[self::LIFETIME] = $lifetime ?? (int) ini_get('session.cookie_lifetime');
     }
 }

Tests/Session/Storage/MetadataBagTest.php

@@ -136,4 +136,14 @@ public function testDoesNotSkipLastUsedUpdate()
 
         $this->assertEquals($timeStamp, $sessionMetadata[MetadataBag::UPDATED]);
     }
+
+    public function testLifetimeIsInt()
+    {
+        $sessionMetadata = [];
+
+        $bag = new MetadataBag();
+        $bag->initialize($sessionMetadata);
+
+        $this->assertIsInt($bag->getLifetime());
+    }
 }