php81 update (#148)

* update deprecated

* fix up AbstractList

* 8.0 support

* specify version requirement

* remove 7.4

* little more static analysis based cleanup

* Add phpunit cache to git ignore

* update version

Author: jspaetzel

.gitignore

@@ -13,3 +13,4 @@ test.php
 .idea
 *.swp
 vendor
+.phpunit.result.cache

.travis.yml

@@ -1,22 +1,11 @@
 language: php
 jobs:
   include:
-    - stage: php71-lowest
-      php: 7.1
-      env: dependencies=lowest
+    - stage: php80
+      php: 8.0
       script: ./vendor/bin/phpunit
-    - stage: php72-lowest
-      php: 7.2
-      env: dependencies=lowest
-      script: ./vendor/bin/phpunit
-    - stage: php72
-      php: 7.2
-      script: ./vendor/bin/phpunit
-    - stage: php73
-      php: 7.3
-      script: ./vendor/bin/phpunit
-    - stage: php74
-      php: 7.4
+    - stage: php81
+      php: 8.1
       script: ./vendor/bin/phpunit
 
 before_script:

README.md

@@ -7,7 +7,8 @@ This is the official PHP SDK for HelloSign's API.  [View API Documentation and E
 
 ### Requirements
 
-The latest version of the SDK requires PHP version 7.1 or higher.
+The latest version of the SDK requires PHP version 8.0 or higher. 
+For PHP 7.x use SDK version 3.7.*
 
 You can import this SDK into your library two ways, either through including the base HelloSign.php file into your
 project or using [Composer](https://getcomposer.org/doc/00-intro.md).

composer.json

@@ -14,9 +14,11 @@
         "psr-0": { "HelloSign\\": "library/" }
     },
     "require-dev": {
-        "phpunit/phpunit": "7.3.*"
+        "phpunit/phpunit": "^8.0",
+        "phpstan/phpstan": "^1.8"
     },
     "require": {
+        "php": "^8.0|8.1",
         "guzzlehttp/guzzle": "^6.3|^7.0"
     }
 }