netbeans crying...

php/AuthSCHClient.class.php

@@ -43,16 +43,18 @@ class AuthSCHClient {
     }
     
     public function __destruct() {
-        if(isset($this->tokens))
+        if(isset($this->tokens)) {
             unset ($this->tokens);
         }
+    }
     
     private function curlExec($urlPart, $data) {
         $ch = curl_init();
         curl_setopt($ch, CURLOPT_URL, self::$host . $urlPart);
         curl_setopt($ch, CURLOPT_HEADER, 0);
-        if($urlPart != "oauth2/resource")
+        if($urlPart != "oauth2/resource") {
             curl_setopt($ch, CURLOPT_USERPWD, self::$username . ":" . self::$password);
+        }
         curl_setopt($ch, CURLOPT_TIMEOUT, 30);
         curl_setopt($ch, CURLOPT_POST, 1);
         curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($data));
@@ -111,15 +113,16 @@ class AuthSCHClient {
         
         $ch = $this->curlExec("oauth2/token", $data);
         $tokens = json_decode($ch);
-        if($tokens === null || !isset($tokens->access_token) || empty($tokens->access_token))
+        if($tokens === null || !isset($tokens->access_token) || empty($tokens->access_token)) {
                 throw new Exception ("invalid token data");
+        }
         
         $this->tokens->access_token = $tokens->access_token;
     }
     
     public function getData() {
         $response = @file_get_contents(self::$host . 'api/profile/?access_token=' . $this->tokens->access_token);
-        if(isset($response) && !empty($response)) {
+        if(isset($response) && $response !== false && !empty($response)) {
             $data = json_decode($response);
             if($data !== null) {
                 return $data;
@@ -127,8 +130,9 @@ class AuthSCHClient {
                 throw new Exception('invalid json');
             }
         } else {
-            if(isset($_SESSION['tokens'])) 
+            if(isset($_SESSION['tokens'])) {
                 unset ($_SESSION['tokens']);
+            }
             throw new Exception('invalid response');
         }
     }