webonyx/graphql-php
Graphql Php
该项目是 GraphQL 规范的 PHP 实现。它提供了一套用于构建处理查询和变更（mutations）服务器的工具，包括模式解析器、用于评估操作的执行引擎，以及用于操作抽象语法树（AST）的工具包。
该库的特色在于其专门的 AST 工具包，允许对 GraphQL 抽象语法树进行检查、修改和打印。它还包含一种延迟字段解析机制，以实现异步数据获取并防止阻塞主执行线程。
该实现涵盖了广泛的功能领域，包括通过模式定义语言（SDL）进行的模式管理、用于安全的基于规则的文档验证，以及确保符合规范响应的格式化错误处理。
Features
- GraphQL Servers - Provides a full PHP implementation for building backend servers that process GraphQL queries and mutations.
- Document Validation - Includes a rule-based validation system that checks GraphQL documents against a schema to ensure structural and type correctness.
- GraphQL Document Validations - Implements a rule-based validation system that ensures GraphQL queries adhere to the defined schema before execution.
- GraphQL AST Parsing - Provides the core mechanism for converting GraphQL query strings into abstract syntax trees for further processing.
- Schema-Based Execution - Implements the core engine that maps GraphQL query fields to resolver functions based on the schema.
- GraphQL Execution Engines - Implements the runtime engine that executes GraphQL operations against a schema to return data.
- GraphQL Operation Processing - Handles the end-to-end lifecycle of parsing, validating, and resolving GraphQL operations.
- GraphQL Schema Definitions - Provides the capability to define and map internal data models to a typed GraphQL schema.
- SDL Parsers - Provides utilities to parse Schema Definition Language strings into executable GraphQL schema objects.
- SDL Schema Generation - Generates functional GraphQL schema instances from SDL strings or parsed ASTs.
- GraphQL Schema Parsing - Implements the core process of converting GraphQL schema definition language into an internal executable structure for query processing.
- GraphQL Development Tooling - Offers a suite of programmatic utilities for inspecting and modifying GraphQL schemas and queries.
- AST String Printing - Includes a utility to convert abstract syntax trees back into human-readable GraphQL strings.
- AST Modification - Allows for the programmatic mutation and replacement of nodes within a GraphQL abstract syntax tree.
- AST Visitor Patterns - Implements a visitor pattern for traversing and manipulating GraphQL abstract syntax trees.
- GraphQL Deferred Fields - Provides a mechanism for deferred field resolution to enable asynchronous data fetching and prevent blocking the execution thread.
- GraphQL AST Toolkits - Ships a specialized toolkit for the inspection, modification, and printing of GraphQL abstract syntax trees.
- Schema SDL Printers - Provides a printer to export the internal schema representation into human-readable Schema Definition Language.
- PHP GraphQL Tools - Reference implementation of GraphQL for PHP.
