Introducing advanced composer commands

The tutorial column of composer below will introduce you to the advanced commands of composer. I hope it will be helpful to those who need it!

composer advanced commands

composer dumpautoload

After updating the project composer autoloader. Do not use composer update to load the index (update will update the entire project), use dumpautoload to complete it.

Support two parameters

--optimize (-o)
--no-dev

composer depends

To detect dependencies, refer to https://docs.phpcomposer.com/03-cli.html#depends

composer show

List all available software packages

$ composer show

doctrine/inflector                 2.0.3   PHP Doctrine Inflector is a small library that can perform string manip...
doctrine/instantiator              1.4.0   A small, lightweight utility to instantiate objects in PHP without invo...
elasticsearch/elasticsearch        v7.10.0 PHP Client for Elasticsearch
ezimuel/guzzlestreams              3.0.1   Fork of guzzle/streams (abandoned) to be used with elasticsearch-php
ezimuel/ringphp                    1.1.2   Fork of guzzle/RingPHP (abandoned) to be used with elasticsearch-php
filp/whoops                        2.9.1   php error handling for cool kids
graham-campbell/result-type        v1.0.1  An Implementation Of The Result Type
illuminate/container               v7.30.1 The Illuminate Container package.
illuminate/contracts               v7.30.1 The Illuminate Contracts package.
illuminate/database                v7.30.1 The Illuminate Database package.
illuminate/support                 v7.30.1 The Illuminate Support package.

Show detailed information of specific packages

$ composer show illuminate/database

name     : illuminate/database
descrip. : The Illuminate Database package.
keywords : database, laravel, orm, sql
versions : * v7.30.1
type     : library
license  : MIT License (MIT) (OSI approved) https://spdx.org/licenses/MIT.html#licenseText
source   : [git] https://github.com/illuminate/database.git 13ae12f444c9d071c6867cf86afd2fdedfd081ec
dist     : [zip] https://api.github.com/repos/illuminate/database/zipball/13ae12f444c9d071c6867cf86afd2fdedfd081ec 13ae12f444c9d071c6867cf86afd2fdedfd081ec
path     : E:\wamp\www\git\test\php\phptest\vendor\illuminate\database
names    : illuminate/database

autoload
psr-4
Illuminate\Database\ => .

requires
ext-json *
illuminate/container ^7.0
illuminate/contracts ^7.0
illuminate/support ^7.0
php ^7.2.5|^8.0
symfony/console ^5.0

suggests
doctrine/dbal Required to rename columns and drop SQLite columns (^2.6).
fakerphp/faker Required to use the eloquent factory builder (^1.9.1).
illuminate/console Required to use the database commands (^7.0).
illuminate/events Required to use the observers with Eloquent (^7.0).
illuminate/filesystem Required to use the migrations (^7.0).
illuminate/pagination Required to paginate the result set (^7.0).
symfony/finder Required to use Eloquent model factories (^5.0).

composer package version

##>=1.0 or >=1.0,<2.0Range represents ##1.0.*~1.2.3 ^1.2.3

Example	Description
1.0.2	Specify the exact version of the package (use less )
	Comma, indicating the logical relationship with && Pipe symbol | Expresses the relationship of or
>=1.0 && < 1.1
>=1.2.3,<1.3 (useful for projects that follow semantic versioning)
> ;=1.2.3,<2.0.0

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