Update CurrentWeather.php (#88)

* Update CurrentWeather.php

[] is PHP 5.4.0 changing to array() to keep retro compatibility

* Update CurrentWeather.php

Author: emimarz

Cmfcmf/OpenWeatherMap/CurrentWeather.php

@@ -124,7 +124,7 @@ public function __construct($data, $units)
 
             // the rain field is not always present in the JSON response
             // and sometimes it contains the field '1h', sometimes the field '3h'
-            $rain = isset($data->rain) ? (array) $data->rain : [];
+            $rain = isset($data->rain) ? (array) $data->rain : array();
             $rainUnit = !empty($rain) ? key($rain) : '';
             $rainValue = !empty($rain) ? current($rain) : 0.0;
             $this->precipitation = new Unit($rainValue, $rainUnit);