使用

composer require ckeditor/ckeditor

结果

akash@localhost /var/www/html/lara57 $ composer require ckeditor/ckeditor

Using version ^4.11 for ckeditor/ckeditor
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Package operations: 1 install, 0 updates, 0 removals
  - Installing ckeditor/ckeditor (4.11.3): Downloading (100%)         
Package phpoffice/phpexcel is abandoned, you should avoid using it. Use phpoffice/phpspreadsheet instead.
Writing lock file