Composerでglobalにインストールしたパッケージをupdateする
$ composer global update
globalに入っているパッケージversionを確認する
$ composer global show
Changed current directory to /Users/Syy/.composer
guzzlehttp/guzzle 6.3.3 Guzzle is a PHP HTTP client library
guzzlehttp/promises v1.3.1 Guzzle promises library
guzzlehttp/psr7 1.5.2 PSR-7 message implementation that also provides common utility methods
laravel/installer v1.5.0 Laravel application installer.
psr/http-message 1.0.1 Common interface for HTTP messages
ralouphie/getallheaders 2.0.5 A polyfill for getallheaders.
symfony/console v4.2.3 Symfony Console Component
symfony/contracts v1.0.2 A set of abstractions extracted out of the Symfony components
symfony/filesystem v4.2.3 Symfony Filesystem Component
symfony/polyfill-ctype v1.10.0 Symfony polyfill for ctype functions
symfony/polyfill-mbstring v1.10.0 Symfony polyfill for the Mbstring extension
symfony/process v4.2.3 Symfony Process Component