Fix connection port type

Author: antonkomarev

src/Client.php

@@ -52,7 +52,7 @@ class Client
     /** @var string */
     private $connectHost;
 
-    /** @var string */
+    /** @var int */
     private $connectPort;
 
     /** @var int */
@@ -97,7 +97,7 @@ public function __construct(array $connectParams, array $settings = [])
 
         $this->connectUsername = $connectParams['username'];
         $this->connectPassword = $connectParams['password'];
-        $this->connectPort = $connectParams['port'];
+        $this->connectPort = intval($connectParams['port']);
         $this->connectHost = $connectParams['host'];
 
         // init transport class
@@ -241,9 +241,9 @@ public function getConnectPassword(): string
     }
 
     /**
-     * @return string
+     * @return int
      */
-    public function getConnectPort(): string
+    public function getConnectPort(): int
     {
         return $this->connectPort;
     }