composer updates the specified dependency package method-composer-php.cn

The following tutorial column ofcomposerwill introduce you to the method of composer updating the specified dependency package. I hope it will be helpful to friends in need!

compoesr#/updatecan update the specified dependency package (upgrade/downgrade).

requireis more flexible. If it is not installed, it will be installed. If it is installed, it willupgradeordowngradeaccording to the passed version number.
updatecannot pass the specifiedversion numberon the command line. You need to manually editcomposer.jsonfirst and specify the newversion number., and then execute the update command.

#忽略 composer require google/protobuf --ignore-platform-reqs -vvv

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require command

Example

// 安装包 composer require hashids/hashids:2.0.0 // 已安装 升级 composer require hashids/hashids:3.0.0 // 已安装 降级 composer require hashids/hashids:2.0.4

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update command

updatecommand Unable to specifypackage version on the command line No., you need to manually modify thecomposer.jsonfile

// 安装包 composer require hashids/hashids:2.0.0

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Incorrect usage

composer update hashids/hashids:3.0.0

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Correct usage example

vim composer.json "require": { "hashids/hashids": "3.0.0" }, :wq #升级到3.0.0 composer update hashids/hashids vim composer.json "require": { "hashids/hashids": "2.0.4" }, :wq #降级到2.0.4 composer update hashids/hashids

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At the same time, if we edit and update If the version numbers of multiple packages are incorrect, you cannot use

composer update package1
composer update package2
composer update package3method to update sequentially, because
composerwill verify the integrity of the configuration filejson vs lock, you specified that you want me to updateA, but youB'sversionis inconsistent injsonandlock, but you don't want me to update it. This is problematic.

At this time, you can only use

composer updateto update dependencies globally. Note that it is an update operation for global packages. Some packages that you have not changed but use a version number range may also be updated and upgraded. Please Use with caution!

install command

installcan be used to install dependencies for the first time after the project is initialized, and the version number incomposer.lockwill be read first , to ensure the consistency of package versions in collaborative development as much as possible. The package version record that exists in

composer.lockis equivalent to executingcomposer require packageName:versionNo, and the one that does not exist is equivalent to executingcomposer update packageName with versionRule in composer.json.

When we collaborate on development, A installs a new dependency package locally, or updates a dependency package, which will be written to

composer.lock/composer.json, and A uploads it to the warehouse. After B is pulled to the local,composer installshould be executed once to synchronize the team's version changes.

So during collaborative development, we recommend uploading

composer.lock/composer.jsonto the remote warehouse at the same time.

Version number range

大于/大于等于：>1.2.3 >=1.2.3 小于/小于等于：<1.2.3 <=1.2.3 确切的版本号：1.2.3 ~1.2.3: 1.2.3 <= version < 1.3 ^1.2.3: 1.2.3 <= version < 2.0 { "php": ">=7.0", "ext-swoole": ">=4.0.0", "lib-curl": ">=7.29.0" }

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