ubuntu 16.04 composer安装

sudo apt install composer

执行composer update 报错 查看composer.json "phpunit/phpunit":"~5.7"

phpunit 没有安装

解决办法：

sudo apt-get install phpunit

将composer.json"phpunit/phpunit":"~5.7"

改成：composer.json"phpunit/phpunit":"*"

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sudo curl -sS https://getcomposer.org/installer | sudo php -d detect_unicode=Off

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

cd /usr/local/bin/

sudo chmod a+x composer

sudo composer self-update

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

http://www.phpcomposer.com/

http://docs.phpcomposer.com/00-intro.html#Downloading-the-Composer-Executable