Install composer under Linux like this

The following is a tutorial column by composer to introduce to you how to install composer under Linux. I hope it will be helpful to friends in need!

1. Direct download from the official website

官网链接：https://getcomposer.org/

2. Global installation

2.1 Prerequisite

The downloaded file directory is ：/home/username/Download/composer.phar

2.2 Installation

/**
 * 这边不直接把它放在 /bin 目录下是因为这边存放的必须是软连接
 * 而 composer.phar 就是源，所以不可以.
 * 但是 /usr/local/bin 目录下却可以！
 * 所以存放在这儿，就能全局调用了
 */
sudo mv /home/username/下载/composer.phar /usr/local/bin/composer
sudo chmod 711 composer

3. Test

cd /
composer --help

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