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How to install/enable PHP Composer 2 on Plesk Server?

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Julian Bonpland Mignaquy
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Plesk for Linux kb: how-to

Applicable to:

  • Plesk for Linux

Question

  • How to install PHP Composer 2?
  • How to upgrade PHP Composer to PHP Composer 2?

Answer

  1. Log in to Plesk

  2. Go to Extensions > My Extensions > Panel.ini Editor > Open.

    Note: If Panel.ini Editor extension is not installed, install it from the Extensions menu in Plesk.

  3. Switch to the Editor tab and Specify the Composer version by adding the lines below at the end of the file:

    [ext-composer]
    composerVersion = '2'

  4. Connect to the server via SSH

  5. Navigate to Composer directory:

    # cd /usr/local/psa/var/modules/composer/

  6. Delete current composer.phar file:

    # rm composer.phar

  7. Download the latest stable Composer 2 composer.phar file from official website:

    # wget https://getcomposer.org/download/latest-stable/composer.phar

  8. Make composer.phar file executable:

    # chmod +x composer.phar

  9. Log into Plesk

  10. Go to Websites & Domains > example.com > PHP Composer > Update.

Comments

1 comment

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    Hello,
    I tried to follow the procedure to switch to composer 2 version.
    However, I have several errors when I want to update (Step 10).
    Cordially.

    • For additional security you should declare the allow-plugins config with a list of packages names that are allowed to run code. See https://getcomposer.org/allow-plugins
    • You have until July 2022 to add the setting. Composer will then switch the default behavior to disallow all plugins.
    • The "plesk/composer-command-info" plugin (installed globally) was skipped because it requires a Plugin API version ("^1.1") that does not match your Composer installation ("2.2.0"). You may need to run composer update with the "--no-plugins" option.
    • Loading composer repositories with package information
    • Updating dependencies
    • Your requirements could not be resolved to an installable set of packages.
    •  
    • Problem 1
    • - Root composer.json requires friendsofphp/php-cs-fixer ~1.12 -> satisfiable by friendsofphp/php-cs-fixer[v1.12.0, ..., v1.13.3].
    • - friendsofphp/php-cs-fixer[v1.12.0, ..., v1.13.3] require php ^5.3.6 || >=7.0 <7.2 -> your php version (8.0.14) does not satisfy that requirement.
    •  
    • Running update with --no-dev does not mean require-dev is ignored, it just means the packages will not be installed. If dev requirements are blocking the update you have to resolve those problems.

     

     

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