Yii2 在服务器上死活composer install 失败

root@dv:/home/dv# composer install
Do not run Composer as root/super user! See https://getcomposer.org/root for details
Loading composer repositories with package information
Installing dependencies (including require-dev) from lock file
Package operations: 73 installs, 0 updates, 0 removals
    Failed to download composer/installers from dist: The zip extension and unzip command are both missing, skipping.
Your command-line PHP is using multiple ini files. Run `php --ini` to show them.
    Now trying to download from source

已经修改为中国全量镜像,不过还总是这样是php的问题吗?具体是啥呢,求大佬指点