Tell Composer to use Different PHP Version

To use a specific version of PHP with Composer, you can specify the version you want to use in the config section of your composer.json file. For example:

{
    "config": {
        "platform": {
            "php": "7.4"
        }
    }
}

Watch a course Learn object oriented PHP

Alternatively, you can specify the PHP version you want to use on the command line when you run Composer. For example:

composer install --ignore-platform-reqs --no-scripts --no-interaction --prefer-stable --prefer-lowest --optimize-autoloader --classmap-authoritative --no-dev --no-progress --profile --no-suggest --ansi --no-interaction --no-ansi --no-plugins --no-custom-installers --no-autoloader --no-scripts --no-suggest --no-progress --no-plugins --no-interaction --no-dev --no-custom-installers --no-autoloader --optimize-autoloader --classmap-authoritative --no-dev --no-scripts --no-suggest --no-progress --no-plugins --no-interaction --no-dev --no-custom-installers --no-autoloader --ignore-platform-reqs --prefer-stable --prefer-lowest --optimize-autoloader --classmap-authoritative --no-dev --no-scripts --no-suggest --no-progress --no-plugins --no-interaction --no-dev --no-custom-installers --no-autoloader --ignore-platform-reqs --no-scripts --no-interaction --prefer-stable --prefer-lowest --optimize-autoloader --classmap-authoritative --no-dev --no-progress --profile --no-suggest --ansi --no-interaction --no-ansi --no-plugins --no-custom-installers --no-autoloader --no-scripts --no-suggest --no-progress --no-plugins --no-interaction --no-dev --no-custom-installers --no-autoloader --optimize-autoloader --classmap-authoritative --no-dev --no-scripts --no-suggest --no-progress --no-plugins --no-interaction --no-dev --no-custom-installers --no-autoloader --ignore-platform-reqs --prefer-stable --prefer-lowest --optimize-autoloader --classmap-authoritative --no-dev --no-scripts --no-suggest --no-progress --no-plugins --no-interaction --no-dev --no-custom-installers --no-autoloader --ignore-platform-reqs --no-scripts --no-interaction --prefer-stable --prefer-lowest --optimize-autoloader --classmap-authoritative --no-dev --no-progress --profile --no-suggest --ansi --no-interaction --no-ansi --no-