Merge pull request #217 from bookernath/bump-min-php-56

Bump min PHP to 7.0, start running tests on 7.1 and 7.2

Author: bookernath

.travis.yml

@@ -1,10 +1,8 @@
 language: php
 php:
+- 7.2
+- 7.1
 - 7.0
-- 5.6
-- 5.5
-- 5.4
-- 5.3
 before_script:
 - composer install --dev --optimize-autoloader
 - mkdir -p build/logs

README.md

@@ -16,7 +16,7 @@ http://developer.bigcommerce.com/
 Requirements
 ------------
 
-- PHP 5.3 or greater
+- PHP 7.0 or greater
 - cUrl extension enabled
 
 **To connect to the API with basic auth you need the following:**

composer.json

@@ -12,7 +12,7 @@
         }
     ],
     "require": {
-        "php": ">=5.3.0",
+        "php": ">=7.0",
         "firebase/php-jwt": "~3.0|~5.0",
         "paragonie/random_compat": "~1.4|~2.0"
     },