Merge pull request #46 from crazycodr/master

Fix incorrect cast after json_decode

Author: bracki

src/Prometheus/Sample.php

@@ -31,15 +31,15 @@ public function getName()
      */
     public function getLabelNames()
     {
-        return $this->labelNames;
+        return (array)$this->labelNames;
     }
 
     /**
      * @return array
      */
     public function getLabelValues()
     {
-        return $this->labelValues;
+        return (array)$this->labelValues;
     }
 
     /**

src/Prometheus/Storage/Redis.php

@@ -283,7 +283,7 @@ private function collectGauges()
                 $gauge['samples'][] = array(
                     'name' => $gauge['name'],
                     'labelNames' => array(),
-                    'labelValues' => json_decode($k),
+                    'labelValues' => json_decode($k, true),
                     'value' => $value
                 );
             }
@@ -309,7 +309,7 @@ private function collectCounters()
                 $counter['samples'][] = array(
                     'name' => $counter['name'],
                     'labelNames' => array(),
-                    'labelValues' => json_decode($k),
+                    'labelValues' => json_decode($k, true),
                     'value' => $value
                 );
             }