1. Загрузите установочный скрипт – композитор-настройка. php – в текущий каталог
php -r "copy('https://install.phpcomposer.com/installer', 'composer-setup.php');"
2. Выполните процесс установки
php composer-setup.php
3. Удалите сценарий установки
php -r "unlink('composer-setup.php');"
4. Глобальная установка
sudo mv composer.phar /usr/local/bin/composer(ubuuntu:/usr/bin/composer) Note: before installation, make sure that PHP is installed correctly (check: PHP - V to see the version number), and keep the composer version update command: composer selfupdate