First, the installation command
$ curl -sS https://getcomposer.org/installer | php
$ sudo mv composer.phar /usr/local/bin/composer
$ composer --version
Composer version 1.7.2 2018-08-16 16:57:12
Second, the replacement for the domestic Ali cloud composer mirror address
( 1 ) Global / Cancel
#composer config -g repo.packagist composer https://mirrors.aliyun.com/composer/
#composer config -g --unset repos.packagist
( 2 ) partial replacement
#composer config repo.packagist composer https://mirrors.aliyun.com/composer/
#composer config --unset repos.packagist
Third, download a Laravel framework to try Ali cloud composer mirror speed
#cd /Users/apple/Documents/Workspace/PhpstormProjects
#composer -vvv create-project laravel/laravel myapp-1
Description: -vvv command output details, laravel / laravel express image name to download, store files myapp-1 represents the project's folder