Linux下全局安装composer方法

//下载composer

php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"

//校验文件完整性

php -r "if (hash_file('sha384', 'composer-setup.php') === '93b54496392c062774670ac18b134c3b3a95e5a5e5c8f1a9f115f203b75bf9a129d5daa8ba6a13e2cc8a1da0806388a8') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"

//安装composer (chmod +x 赋予读写权限)

chmod +X composer-setup.php

php composer-setup.php

//删除文件

php -r "unlink('composer-setup.php');"

//将composer.phar文件移动到bin目录以便全局使用composer命令

mv composer.phar /usr/local/bin/composer

//切换国内源

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

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