Modify function to be accessible in lower versions of php.

index.php

@@ -62,7 +62,7 @@ if ($emails)
         $board = null;
         if(strstr($overview->to[0]->mailbox, '+')) {
             $board = substr($overview->to[0]->mailbox, strpos($overview->to[0]->mailbox, '+') + 1);
-            if(str_contains($board, '+')) $board = str_replace('+', ' ', $board);
+            if(strstr($board, '+')) $board = str_replace('+', ' ', $board);
         }
         
         $data = new stdClass();

lib/DeckClass.php

@@ -54,13 +54,18 @@ class DeckClass {
                 }
                 $boardId = $board->id;
                 $boardName = $board->title;
+                break;
             }
         }
 
         if($boardId) {
             $stacks = $this->apiCall("GET", NC_SERVER . "/index.php/apps/deck/api/v1.0/boards/$boardId/stacks");
-            foreach($stacks as $stack)
-                (strtolower($stack->title) == strtolower($stackFromMail)) ? $stackId = $stack->id : $stackId = $stacks[0]->id;
+            foreach($stacks as $key => $stack)
+                if(strtolower($stack->title) == strtolower($stackFromMail)) {
+                    $stackId = $stack->id;
+                    break;
+                }
+                if($key == array_key_last($stacks) && !isset($stackId)) $stackId = $stacks[0]->id;
         } else {
             return false;
         }

lib/MailClass.php

@@ -33,9 +33,9 @@ class MailClass {
     public function reply($sender, $response = null) {
         $server = NC_SERVER;
 
-        if(str_contains($server, "https://")) {
+        if(strstr($server, "https://")) {
             $server = str_replace('https://', '', $server);
-        } else if(str_contains($server, "http://")) {
+        } else if(strstr($server, "http://")) {
             $server = str_replace('http://', '', $server);
         }