x

@@ -6,7 +6,7 @@ class ImapClient {
 
     /**
      * 资源
-     * @var
+     * @var resource|false
      */
     private $socket;
 
@@ -23,6 +23,7 @@ class ImapClient {
 
     public function __construct(string $host){
         $this->host = $host;
+        $this->socket = false;
     }
 
     public function open(){
@@ -129,7 +130,7 @@ class ImapClient {
 
     public function __destruct()
     {
-        @fclose($this->socket);
+        if($this->socket) @fclose($this->socket);
         unset($this->socket);
         // TODO: Implement __destruct() method.
     }