北京百思可瑞教育：Composer 依赖管理进阶，版本约束、私有仓库与自动加载优化

{
  "require": {
    "vendor/package": ">=1.2.0 <2.0.0 || >=3.0.0",
    "another/package": "~1.3.2 || ^2.4.1"
  }
}

{
  "config": {
    "minimum-stability": "beta",
    "prefer-stable": true
  },
  "require": {
    "vendor/package": "2.0.0-beta.2@beta"
  }
}

{
  "require": {
    "legacy/package": "1.0.*@dev",
    "critical/lib": "1.2.3 as 1.2"
  }
}

{
  "repositories": [
    {
      "type": "composer",
      "url": "https://private-repo.com"
    },
    {
      "type": "vcs",
      "url": "git@github.com:org/private-pkg.git"
    },
    {
      "type": "path",
      "url": "../local-dev-pkg"
    }
  ]
}

{
  "require": {
    "private/pkg": "dev-master as 2.0.0",
    "public/pkg": ">=3.0.0"
  },
  "conflict": {
    "public/pkg": "<3.0.0"
  }
}

composer config repositories.local-pkg path ../local-pkg
composer require local-pkg:dev-feature

{
  "autoload": {
    "psr-4": {
      "App\\": "src/",
      "Legacy\\": "lib/",
      "Test\\": "tests/"
    },
    "exclude-from-classmap": ["src/Deprecated/"]
  }
}

# 生成优化后的自动加载文件
composer dump-autoload -o --apcu

# 生产环境部署
composer install --no-dev --optimize-autoloader

{
  "autoload": {
    "files": ["helpers.php"],
    "classmap": ["legacy-code/"],
    "exclude-files": ["debug.php"]
  }
}

{
  "require": {
    "laravel/framework": "^8.0",
    "guzzlehttp/guzzle": "^7.0"
  },
  "config": {
    "platform": {
      "php": "7.4.30"
    }
  }
}

# 允许主版本更新
composer update vendor/package --with-dependencies

# 强制更新锁定文件
composer update --lock

; php.ini 配置优化
memory_limit = 2G
default_socket_timeout = 600

# Composer 命令优化
composer install --prefer-dist --no-interaction --no-progress