How to update Composer in Windows 10

Question

I am using Composer for my PHP project. I am new to Composer. Now when I update my dependencies using composer update command, it is saying that my Composer version is too old and ask me to update. So I tried as below. But all failed.

My composer.phar file is in C:/ProgramData/ComposerSetup/bin/composer.phar

I opened terminal and tried

composer.phar update

php composer.phar update

composer C:/ProgramData/ComposerSetup/bin/composer.phar update

php composer C:/ProgramData/ComposerSetup/bin/composer.phar update

When I run composer-self-update , error as in screenshot.

All command failed. I am using XAMPP. There is no composer.phar file in xampp/php folder as well. How can I update Composer in Windows 10?

Answer 1

Try

composer self-update

If this doesn't work check your PATH variable, if it's not there try searching composer.bat in windows and add it to your PATH variable. Normally, its in following path.

C:\\ProgramData\\ComposerSetup\\bin

Answer 2

Windows 10 update for Composer still works (end of 2020, pre version 2) with:

Follow This below Image:

composer self-update --1 it will be updated from 1.x

composer self-update --2 it will be updated from 2.x and from 1.x

composer self-update --rollback If you need to rollback to your previous version

composer -V For check your composer version

composer self-update:

If you run composer self-update from 1.x, it will warn you that a new stable major version of Composer is available, and you can use composer self-update --2 to migrate to it.

So run composer self-update --2

How easy is it to upgrade?

• Composer 2.0 still supports PHP 5.3 and above, much like Composer 1.x
• composer.lock files are interoperable between versions, so you can upgrade to 2.0 and roll back easily if needed.
• Most commands and arguments remain the same, and largely what you know about Composer remains true in 2.0.

Answer 3

Windows 10 update for Composer still works (end of 2020, pre version 2) with:

composer self-update

If you need to rollback to your previous version, you can do that with:

composer self-update --rollback

Answer 4

Try.

php composer.phar self-update

'update' updates your dependencies not composer itself.

Answer 5

Use

composer self-update --2

By default, the installer and composer self-update will download the latest stable version only. To programmatically install specific major versions you can use the --1 or --2 flag.

To go back to the previous version:

composer self-update --rollback

To check the current version

composer --version