convert : date allow now to set the input and output timezone

git-svn-id: https://svn.fournier38.fr/svn/ProgSVN/trunk@6089 bf3deb0d-5f1a-0410-827f-c0cc1f45334c

convert.php

@@ -17,10 +17,16 @@ class convert
     * @param string $outputFormat The output format of the date
     * @param boolean|null $exception If set, generate an exception if the
     * provided date is invalid
+    * @param string|null $inputTimezone The timezone used to read the input
+    * By default, Europe/Paris
+    * @param string|null $outputTimezone The timezone used to write the output
+    * By default, Europe/Paris
     * @return string
     */
   public static function convertDate ($inputDate, $inputFormat, $outputFormat,
-                                      $exception = true)
+                                      $exception = true,
+                                      $inputTimezone = "Europe/Paris",
+                                      $outputTimezone = "Europe/Paris")
   // {{{
   {
     if (! is_string ($inputDate))
@@ -29,7 +35,8 @@ class convert
       throw new \Exception ("The convert input format is not a string", 500);
     if (! is_string ($outputFormat))
       throw new \Exception ("The convert output format is not a string", 500);
-    $date = \DateTime::CreateFromFormat ($inputFormat, $inputDate);
+    $date = \DateTime::CreateFromFormat ($inputFormat, $inputDate,
+      new \DateTimeZone ($inputTimezone));
     if ($date === false)
     {
       if ($exception === true)
@@ -45,6 +52,8 @@ class convert
           "Invalid date provided or not matching the format", 500);
       return $inputDate;
     }
+
+    $date->setTimezone(new \DateTimeZone ($outputTimezone));
     return $date->format ($outputFormat);
   }
   // }}}