Composer experience sharing: summary of the use of install and update

This article is provided by the tutorial column of composer to introduce you to the experience of using composer install and update. I hope it will be helpful to friends in need!

#Installinstall

composer install reads third-party components and their versions from composer.lock and installs them into the vendor directory. If the
composer.lock file does not exist, read the composer.json third-party component and its version, and then install it in the vendor directory.

Updateupdate

update obtains third-party components and components directly from composer.json its version and then update the composer.lock file. If the dependent third-party component has a version update,
update will install the latest version into the vendor directory and update composer.lock.

Usage experience

composer update command because it may be used during the testing phase. version of the third-party component library, the composer update command was executed during online packaging, resulting in the problem of third-party component updates being released directly without testing.

composer.json and composer.lock to the version management process, and pay attention during the development process# For changes in dependent versions in ##composer.lock, use composer install for each online package to obtain dependent third-party components and versions from composer.lock. If you need to update third-party components, when executing the

command, should be appended with the component library that needs to be updated.

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