diff --git a/src/geoip.inc b/src/geoip.inc
index 62a4e78..378647f 100644
--- a/src/geoip.inc
+++ b/src/geoip.inc
@@ -1844,11 +1844,12 @@ function _get_region($gi, $ipnum)
             $country_code = "CA";
             $region = chr(($seek_region - CANADA_OFFSET) / 26 + 65) . chr(($seek_region - CANADA_OFFSET) % 26 + 65);
         } else {
-            $country_code = $gi->GEOIP_COUNTRY_CODES[($seek_region - WORLD_OFFSET) / FIPS_RANGE];
+            $country_code = $gi->GEOIP_COUNTRY_CODES[(int) (($seek_region - WORLD_OFFSET) / FIPS_RANGE)];
             $region = "";
         }
         return array($country_code, $region);
     }
+    return null;
 }
 
 function geoip_region_by_addr($gi, $addr)
diff --git a/src/geoipcity.inc b/src/geoipcity.inc
index c6511da..88ced72 100644
--- a/src/geoipcity.inc
+++ b/src/geoipcity.inc
@@ -112,7 +112,7 @@ function _common_get_record($gi, $seek_country)
         $record->postal_code = substr($record_buf, $record_buf_pos, $str_length);
     }
     $record_buf_pos += $str_length + 1;
-    $str_length = 0;
+
     // Get latitude and longitude
     $latitude = 0;
     $longitude = 0;
diff --git a/timezone/make_time_zone_php_code.pl b/timezone/make_time_zone_php_code.pl
index d4cc5f4..0b92934 100755
--- a/timezone/make_time_zone_php_code.pl
+++ b/timezone/make_time_zone_php_code.pl
@@ -21,7 +21,7 @@
  * Get time zone
  * @param string $country
  * @param string $region
- * @return string If the timezone is not found, returns NULL
+ * @return string If the timezone is not found, returns null`
  */
 function get_time_zone($country, $region)
 {