change php version to ^7.0

composer.json

@@ -10,16 +10,16 @@
     }
   ],
   "require": {
-    "php": "~7.0.0",
+    "php": "^7.0",
     "cache/filesystem-adapter": "^1.0",
     "cache/namespaced-cache": "^1.0",
     "cache/redis-adapter": "^1.0",
     "hassankhan/config": "^1.0",
-    "illuminate/database": "5.5.*",
-    "illuminate/events": "5.5.*",
-    "illuminate/pagination": "5.5.*",
-    "illuminate/translation": "5.5.*",
-    "illuminate/validation": "5.5.*",
+    "illuminate/database": "^5.5",
+    "illuminate/events": "^5.5",
+    "illuminate/pagination": "^5.5",
+    "illuminate/translation": "^5.5",
+    "illuminate/validation": "^5.5",
     "kitchenu/slim-debugbar": "^1.1",
     "league/flysystem": "^1.0",
     "mnapoli/silly": "^1.7",
@@ -56,10 +56,7 @@
     "process-timeout": 0,
     "preferred-install": "dist",
     "sort-packages": true,
-    "optimize-autoloader": true,
-    "platform": {
-      "php": "7.0.8"
-    }
+    "optimize-autoloader": true
   },
   "minimum-stability": "dev",
   "prefer-stable": true