diff --git a/extensions/Datatype.php b/extensions/DatatypeTrait.php
similarity index 87%
rename from extensions/Datatype.php
rename to extensions/DatatypeTrait.php
index e7a9f6a..6a242b1 100644
--- a/extensions/Datatype.php
+++ b/extensions/DatatypeTrait.php
@@ -1,6 +1,6 @@
 <?php
 
-trait Datatype {
+trait DatatypeTrait {
 
     /**
      * Datatypes
@@ -53,14 +53,12 @@ trait Datatype {
      *
      * @access private
      *
-     * @param  [array] $datatypes
+     * @param  array $datatypes
      *
-     * @return [string|false]
+     * @return string|false
      */
     private function getMostFrequentDataypeForColumn($datatypes) {
-        if (isset($datatypes['unknown'])) {
-            unset($datatypes['unknown']);
-        }
+        unset($datatypes['unknown']);
 
         $typesFreq = array_count_values($datatypes);
         arsort($typesFreq);
@@ -76,7 +74,7 @@ trait Datatype {
      *
      * @access public
      *
-     * @return [array|bool]
+     * @return array|bool
      */
     public function getDatatypes() {
         if (empty($this->data)) {
@@ -93,6 +91,6 @@ trait Datatype {
 
         $this->data_types = $result;
 
-        return !empty($this->data_types) ? $this->data_types : FALSE;
+        return !empty($this->data_types) ? $this->data_types : false;
     }
 }
diff --git a/parsecsv.lib.php b/parsecsv.lib.php
index cee9370..abf343e 100644
--- a/parsecsv.lib.php
+++ b/parsecsv.lib.php
@@ -322,7 +322,7 @@ class parseCSV {
      */
     public $data = array();
 
-    use Datatype;
+    use DatatypeTrait;
 
     /**
      * Constructor
@@ -469,8 +469,8 @@ class parseCSV {
      * Encoding
      * Convert character encoding
      *
-     * @param  [string] $input  Input character encoding, uses default if left blank
-     * @param  [string] $output Output character encoding, uses default if left blank
+     * @param  string $input  Input character encoding, uses default if left blank
+     * @param  string $output Output character encoding, uses default if left blank
      */
     public function encoding($input = null, $output = null) {
         $this->convert_encoding = true;