一、安装composer

1、将composer.phar下载到项目中

 curl -sS https://getcomposer.org/installer | php

2、把composer.phar放在系统的 PATH 目录中，就能在全局访问composer.phar。

[root@localhost data] #mv composer.phar /usr/local/bin/composer

[root@localhost data]# composer -v    查看composer版本信息

[root@my6qdvoj8skfg7]# composer -v

   ______

  / ____/___  ____ ___  ____  ____  ________  _____

 / /   / __ \/ __ `__ \/ __ \/ __ \/ ___/ _ \/ ___/

/ /___/ /_/ / / / / / / /_/ / /_/ (__  )  __/ /

\____/\____/_/ /_/ /_/ .___/\____/____/\___/_/

                    /_/

Composer version 1.10.5 2020-04-10 11:44:22

Usage:

  command [options] [arguments]

Options:

  -h, --help                     Display this help message

  -q, --quiet                    Do not output any message

  -V, --version                  Display this application version

      --ansi                     Force ANSI output

      --no-ansi                  Disable ANSI output

  -n, --no-interaction           Do not ask any interactive question

      --profile                  Display timing and memory usage information

      --no-plugins               Whether to disable plugins.

  -d, --working-dir=WORKING-DIR  If specified, use the given directory as working directory.

      --no-cache                 Prevent use of the cache

  -v|vv|vvv, --verbose           Increase the verbosity of messages: 1 for normal output

二、部署 laravel

配置使用使用国内镜像：

composer config -g repo.packagist composer https://packagist.phpcomposer.com

下载  composer create-project laravel/laravel xiaohu

运行 php -S localhost:8000 -t xiaohu/public