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How we can use composer 1 & composer 2 both in the same machine. As a developer we worked on the multiple project in the same machine and situation comes where project 1 required composer 1 and project 2 required compower version 2.

Parveen
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  • Welcome to SO. In this case you better ask your question first like `How to keep composer 1 & 2 both in same machine?` and then add your answer and accept it. – endo64 Dec 13 '20 at 12:24
  • thanks for the suggestion, i will follow the same. – Parveen Dec 14 '20 at 13:08

2 Answers2

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This is what I used to have composer 1 & 2 both in the same machine. I am hoping this will helpful for someone, who want to use composer 1 & 2 both as separate command

Keep Composer 1 & 2 as separate command

Setup Composer 1:

  1. Copy the current composer directory to new

    cp `which composer` /usr/local/bin/composer1

  2. Update it to version 1:

    composer1 self-update --1

Upgrade to Composer 2 & create alias:

  1. Update composer to version 2

    composer self-update --2

  2. Create symlink for composer2 (optional)

    ln -s `which composer` /usr/local/bin/composer2

Now you can use composer or composer2 command for the project dependent on composer 2 and composer1 command for the project have dependency on composer 1.

Note: you might required to use sudo before the command

leeo
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Parveen
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for windows do the following steps:

  • one -> (create composer1 directory in C:\composer_path)

  • two -> (copy three file in composer directory to composer1 directory)

  • three -> (set path composer1 to environment variable)

  • four -> (run composer1 self-update --1 in cmd) because Convert to version 1.0.0

  • five -> (test versions composer)

and Done! ^_^

you can see two version of composer installed in one windows system.

reference : How to install two composer in one windows system?

Ali Salehi
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  • While this link may answer the question, it is better to include the essential parts of the answer here and provide the link for reference. Link-only answers can become invalid if the linked page changes. - [From Review](/review/late-answers/33727956) – ahuemmer Feb 01 '23 at 08:27
  • 2.5.1 is _not_ the composer LTS version, the LTS version is on the 2.2 channel. And honestly I see no need to duplicate your own answer as the comlete Q&A is here: https://stackoverflow.com/a/75268693/367456 and also prominently linked as related question already. Please remove it and improve the original answer. – hakre Feb 02 '23 at 10:56