composer.json

{
    "require": {
        "catfan/Medoo": "^1.6",
        "cboden/ratchet": "^0.4.1",
        "league/oauth2-server": "^7.3",
        "league/omnipay": "3",
        "nesbot/carbon": "^2.7",
        "omnipay/paypal": "^3.0",
        "phpmailer/phpmailer": "^6.0",
        "symfony/asset": "^4.2",
        "symfony/cache": "^4.2",
        "symfony/console": "^4.2",
        "symfony/debug": "^4.2",
        "symfony/dependency-injection": "^4.2",
        "symfony/dotenv": "^4.2",
        "symfony/filesystem": "^4.2",
        "symfony/form": "^4.2",
        "symfony/lock": "^4.2",
        "symfony/options-resolver": "^4.2",
        "symfony/polyfill-apcu": "^1.10",
        "symfony/polyfill-php72": "^1.10",
        "symfony/polyfill-php73": "^1.10",
        "symfony/process": "^4.2",
        "symfony/property-access": "^4.2",
        "symfony/routing": "^4.2",
        "symfony/templating": "^4.2",
        "symfony/translation": "^4.2",
        "symfony/validator": "^4.2",
        "symfony/yaml": "^4.2"
    },
    "config": {
        "optimize-autoloader": true,
        "sort-packages": true
    },
    "prefer-stable": true
}