Merge pull request #1 from KLab/support-php7

PHP5への互換性を削除 & GitHub ActionsでのPHPStan環境構築

Author: ha1t

.gitignore

@@ -0,0 +1,2 @@
+.DS_Store
+vendor/

composer.json

@@ -10,9 +10,13 @@
       }
     ],
     "require": {
-      "php": ">=5.2.3"
+      "php": ">=7.1"
     },
     "autoload": {
       "classmap": ["lib/SimplePagination"]
+    },
+    "require-dev": {
+        "phpstan/phpstan": "^0.12.0",
+        "phpunit/phpunit": "^7.5"
     }
 }