Install & use Composer for dynamic PHP version

Question

On my local machine I have MAMP PRO running, which allows the change of PHP version per project independently.

Composer is installed on a specific PHP version, but my project aren't.

How would I use composer so that it will either use the PHP version of the local environment, or so that I can easily tell Composer that I am using PHP "x.x.x".

Thank you in advance!

Does this answer your question? Force composer to require PHP Version between Version X and Version Y — Nico Haase
– Nico Haase, Commented Mar 13, 2023 at 12:40
Can you share more details about that? The most upvoted answers in that linked question provide the exact same hint that you've accepted in this question — Nico Haase
– Nico Haase, Commented Mar 13, 2023 at 13:45
The question is obviously not the same. The most upvoted answer there doesn't answer his question, since that he's asked for a version between 2 php versions. — Timberman
– Timberman, Commented Mar 13, 2023 at 14:05

Denis O. · Accepted Answer · 2023-03-13 09:25:42Z

1

I believe you're looking for this thing: https://getcomposer.org/doc/06-config.md#platform

{
    "config": {
        "platform": {
            //"php": "/path/to/php or php version"
            "php": "7.0.3"
        }
    }
}

answered Mar 13, 2023 at 9:25

Denis O.

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DarkShade · Accepted Answer · 2023-03-13 09:25:13Z

-1

You can do this using the composer.phar file downloaded for each project, rather than the global installation of composer. For example

php7.4 composer.phar install or php8.2 composer.phar install or etc.

For downloading composer.phar

php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
php composer-setup.php
php -r "unlink('composer-setup.php');"

ps: don't forget to add composer.phar to gitignore.

answered Mar 13, 2023 at 9:25

DarkShade

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3 Comments

Nico Haase Over a year ago

Please share more details. Why should running the exact same phar file with different PHP versions require multiple copies of that file?

Community Over a year ago

As it’s currently written, your answer is unclear. Please edit to add additional details that will help others understand how this addresses the question asked. You can find more information on how to write good answers in the help center.

DarkShade Over a year ago

@NicoHaase Right it's wrong. It is also possible to use php7.4 /bin/composer install. But the above answer seems to suit the questioner.

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