More explicit date validation statements

Author: Webklex

src/IMAP/Message.php

@@ -257,12 +257,12 @@ private function parseHeader() {
                 $this->date = Carbon::parse($date);
             }catch(\Exception $e){
                 switch(true){
-                    case preg_match('/([A-Z]{2,3}\,\ [0-9]{1,2}\ [A-Z]{2,3}\ [0-9]{4}\ [0-9]{1,2}\:[0-9]{1,2}\:[0-9]{1,2}\ \+[0-9]{4}\ \([A-Z]{2,3}\+[0-9]{1,2}\:[0-9]{1,2})\)+$/i', $date):
+                    case preg_match('/([A-Z]{2,3}\,\ [0-9]{1,2}\ [A-Z]{2,3}\ [0-9]{4}\ [0-9]{1,2}\:[0-9]{1,2}\:[0-9]{1,2}\ \+[0-9]{4}\ \([A-Z]{2,3}\+[0-9]{1,2}\:[0-9]{1,2})\)+$/i', $date) > 0:
                         $array = explode('(', $date);
                         $array = array_reverse($array);
                         $date = trim(array_pop($array));
                         break;
-                    case preg_match('/([0-9]{1,2}\ [A-Z]{2,3}\ [0-9]{4}\ [0-9]{1,2}\:[0-9]{1,2}\:[0-9]{1,2}\ UT)+$/i', $date):
+                    case preg_match('/([0-9]{1,2}\ [A-Z]{2,3}\ [0-9]{4}\ [0-9]{1,2}\:[0-9]{1,2}\:[0-9]{1,2}\ UT)+$/i', $date) > 0:
                         $date .= 'C';
                         break;
                 }