yii2는 php7을 지원하나요?

composer global require "fxp/composer-asset-plugin"

Loading composer repositories with package information
Updating dependencies (including require-dev)
Reading bower.json of bower-asset/yii2-pjax (2.0.7.1)GitHub API limit (60 calls/hr) is exhausted, could not fetch https://api.github.com/repos/yiisoft/jquery-pjax/commits/aef7b953107264f00234902a3880eb50dafc48be. Create a GitHub OAuth token to go over the API rate limit. You can also wait until 2019-02-15 18:54:52 for the rate limit to reset.Head to https://github.com/settings/tokens/new?scopes=repo&description=Composer+on+bw-hz-dev-v14+2019-02-15+1755to retrieve a token. It will be stored in "/data/home/hanguangchao/.config/composer/auth.json" for future use by Composer.
Token (hidden):Package operations: 1 install, 2 updates, 1 removal
  - Removing bower-asset/jquery.inputmask (3.3.7)
  - Updating yiisoft/yii2-composer (2.0.5 => 2.0.7): Loading from cache
  - Installing bower-asset/inputmask (3.3.11): Downloading (100%)
  - Updating yiisoft/yii2 (2.0.12 => 2.0.16): Loading from cacheWriting lock fileGenerating autoload files

 "require" : {
      "yiisoft/yii2": "2.0.16"
  },
  "replace": {
      "bower-asset/inputmask": ">=3.2.0"
  }