composer.json

{
    "type": "project",
    "license": "proprietary",
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        "ext-ctype": "*",
        "ext-curl": "*",
        "ext-iconv": "*",
        "ext-json": "*",
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        "doctrine/annotations": "^1.0",
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        "symfony/serializer": "4.3.*",
        "symfony/swiftmailer-bundle": "^3.1",
        "symfony/translation": "4.3.*",
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        "symfony/web-link": "4.3.*",
        "symfony/webpack-encore-bundle": "^1.6",
        "symfony/yaml": "4.3.*"
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    "require-dev": {
        "phpunit/phpunit": "^8.5",
        "symfony/browser-kit": "4.3.*",
        "symfony/css-selector": "4.3.*",
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        "symfony/maker-bundle": "^1.0",
        "symfony/phpunit-bridge": "^5.3",
        "symfony/stopwatch": "4.3.*",
        "symfony/web-profiler-bundle": "4.3.*",
        "symfony/web-server-bundle": "4.3.*"
    },
    "config": {
        "platform": {
            "php": " 7.2.21"
        },
        "preferred-install": {
            "*": "dist"
        },
        "sort-packages": true
    },
    "autoload": {
        "psr-4": {
            "App\\": "src/"
        }
    },
    "autoload-dev": {
        "psr-4": {
            "App\\Tests\\": "tests/"
        }
    },
    "replace": {
        "paragonie/random_compat": "2.*",
        "symfony/polyfill-ctype": "*",
        "symfony/polyfill-iconv": "*",
        "symfony/polyfill-php71": "*",
        "symfony/polyfill-php70": "*",
        "symfony/polyfill-php56": "*"
    },
    "scripts": {
        "auto-scripts": {
            "cache:clear": "symfony-cmd",
            "assets:install %PUBLIC_DIR%": "symfony-cmd"
        },
        "post-install-cmd": [
            "@auto-scripts"
        ],
        "post-update-cmd": [
            "@auto-scripts"
        ]
    },
    "conflict": {
        "symfony/symfony": "*"
    },
    "extra": {
        "symfony": {
            "allow-contrib": false,
            "require": "4.3.*"
        }
    }
}