Added custom httpBuildQuery - Fixes gh-51

Author: lsolesen

QuickPay/API/Request.php

@@ -159,7 +159,7 @@ protected function execute($request_type, $form = array())
 
         // If additional data is delivered, we will send it along with the API request
         if (is_array($form) && ! empty($form)) {
-            curl_setopt($this->client->ch, CURLOPT_POSTFIELDS, http_build_query($form, '', '&'));
+            curl_setopt($this->client->ch, CURLOPT_POSTFIELDS, $this->httpBuildQuery($form, '', '&'));
         }
 
         // Store received headers in temporary memory file, remember sent headers
@@ -188,4 +188,19 @@ protected function execute($request_type, $form = array())
         // Return the response object.
         return new Response($response_code, $sent_headers, $received_headers, $response_data);
     }
+
+    /**
+     * Improves http_build_query() for the QuickPay use case.
+     *
+     * Kept public for testing purposes.
+     *
+     * @param array $query
+     * @return mixed|string
+     */
+    public function httpBuildQuery($query)
+    {
+        $query = http_build_query($query);
+        $query = preg_replace('/%5B[0-9]+%5D/i', '%5B%5D', $query);
+        return $query;
+    }
 }

Tests/api/RequestTest.php

@@ -60,4 +60,38 @@ public function testFailedPostResponse()
 
         $this->assertFalse($pingResponse->isSuccess());
     }
+
+    /**
+     * Test function added to make sure that issue gh-54 is fixed.
+     */
+    public function testBasket()
+    {
+        $basket = [];
+        $basket[0] = [
+            'qty' => 1,
+            'item_no' => 2,
+            'item_name' => 'Test 1',
+            'item_price' => 100,
+            'vat_rate' => 0.25,
+        ];
+        $basket[1] = [
+            'qty' => 1,
+            'item_no' => 2,
+            'item_name' => 'Test 2',
+            'item_price' => 100,
+            'vat_rate' => 0.25,
+        ];
+
+        $form = [
+            'currency' => 'DKK',
+            'order_id' => 1,
+            'basket' => $basket,
+        ];
+
+        $query = $this->request->httpBuildQuery($form);
+
+        $expected = 'currency=DKK&order_id=1&basket[][qty]=1&basket[][item_no]=2&basket[][item_name]=Test 1&basket[][item_price]=100&basket[][vat_rate]=0.25&basket[][qty]=1&basket[][item_no]=2&basket[][item_name]=Test 2&basket[][item_price]=100&basket[][vat_rate]=0.25';
+
+        $this->assertEquals(urldecode($query), $expected);
+    }
 }