1、下载Composerphp -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"//先下载composer-setup.phpphp -r "if (hash_file('SHA384', 'composer-setup.php') === '669656bab3166a7aff8a7506b8cb2d1c292f042046c5a994c43155c0be6190fa0355160742ab2e1c88d40d5be660b410') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;" //检查composer-setup.php
2、下载composer.pharphp composer-setup.php //执行composer-setup.php文件下载composer.phar，默认下载到当前文件夹php -r "unlink('composer-setup.php');"//删除composer-setup.php
3、安装composer命令安装为全局命令：mv composer.phar /usr/local/bin/composer如果没有权限，执行sudo chmod +xcomposer
4、composer命令用法查看composer信息：composer
5、composer全部命令
6、查看composer配置composer config -l -g
