Minor - fix fatal error, php 7.1 installation

.travis.yml

@@ -18,6 +18,7 @@ cache:
     - $HOME/.composer/cache/files
 php:
   - 7.1
+  - 7.2
 
 env:
   global:

composer.json

@@ -108,7 +108,7 @@
         "sunra/php-simple-html-dom-parser": "~1.5.0",
         "sylius/resource-bundle": "~1.2",
         "sylius/resource": "1.2.*",
-        "sylius/registry": "dev-master",
+        "sylius/registry": "1.2.*",
 
         "friendsofsymfony/jsrouting-bundle": "~2.0",
         "gedmo/doctrine-extensions": "~2.4",

main/inc/lib/webservices/Rest.php

@@ -792,11 +792,12 @@ class Rest extends WebService
                     'title' => Security::remove_XSS($lpDetails['lp_name']),
                     'progress' => intval($progress),
                     'url' => api_get_path(WEB_CODE_PATH).'webservices/api/v2.php?'.http_build_query([
-                        'hash' => $this->encodeParams([
-                            'action' => 'course_learnpath',
-                            'lp_id' => $lpId,
-                            'course' => $this->course->getId(),
-                            'session' => $sessionId,
+                            'hash' => $this->encodeParams([
+                                'action' => 'course_learnpath',
+                                'lp_id' => $lpId,
+                                'course' => $this->course->getId(),
+                                'session' => $sessionId,
+                            ]),
                         ]),
                 ];
             }