moneyphp/money
Money
这是一个用于使用值对象处理财务计算的 PHP 库。它将货币金额表示为整数，以避免浮点精度错误，并确保处理和存储过程中的数学准确性。
该库利用不可变值对象模式，其中计算返回新实例以防止副作用。它采用货币感知算术来限制数学运算仅在共享相同货币的对象之间进行，并使用基于接口的逻辑将货币转换委托给外部汇率提供商。
功能包括用于本地化人类可读字符串的国际货币格式化，以及用于跨网络 API 传输货币数据的标准化 JSON 序列化。
Features
- Monetary Value Objects - Provides immutable value objects that represent monetary amounts as integers to ensure mathematical accuracy.
- Currency Validators - Enforces rules that restrict mathematical operations to objects sharing the same currency to prevent invalid calculations.
- PHP Financial Libraries - Implements the money pattern in PHP using value objects to avoid floating-point precision errors.
- Financial Numeric Precision - Performs financial calculations using integer representation to eliminate rounding errors and precision loss.
- Integer-Based Currency - Stores monetary values as integers within value objects to prevent floating-point rounding errors.
- Smallest Subdivision Integers - Represents monetary amounts as integers of the smallest currency unit to eliminate floating-point precision errors.
- Immutable Data Patterns - Implements an immutable architectural pattern where calculations return new instances to prevent side effects.
- Currency Exchange - Implements logic for converting monetary amounts between different currencies using defined exchange rates.
- Exchange Provider Interfaces - Decouples currency conversion logic from the money object by delegating rate lookups to external exchange providers.
- Locale-Aware Currency Formatting - Transforms raw integers into human-readable currency strings using locale-specific formatting rules and symbols.
- Currency Conversion - Provides a utility for transforming monetary amounts from one currency to another using exchange rates.
- E-commerce and Payments - Implements the money pattern for currency handling.
