Set platform for local installations

Author: TysonAndre

composer.json

@@ -9,6 +9,12 @@
             "name": "Tyson Andre"
         }
     ],
+    "config": {
+        "sort-packages": true,
+        "platform": {
+            "php": "7.1.22"
+        }
+    },
     "require": {
         "php": ">=7.1",
         "nikic/php-parser": "~3.1.1"