README

简单兼容PSR-11的基于自动装配的依赖注入容器和注入器，能够实例化和配置类以解决依赖。仅适用于类和接口。支持PHP 7.1+ 和 8.0+。

特性

• 兼容PSR-11。
• 检测循环引用。
• 支持类名、对象和闭包绑定。
• 支持服务提供者和延迟服务提供者。
• 注入器在构建类时为定义解决依赖，并调用依赖。
• 注入器支持带有方法参数和属性解析依赖的数组定义。

配置容器

只需创建包含绑定和服务提供者的数组实例。

// Bindings
$bindings = [
    FooInterface::class => Foo::class, // Classname binding
    Baz::class => new Baz(), // Object binding
    
    // Closure binding with DI resolving in Closure params
    Bar::class => fn(\Azexsoft\Di\Injector $injector) => $injector->build( 
        Bar::class,
        [
            'config' => $params['barConfig'],
            'someParameter' => 123
        ]
    ),
];

// Service providers
$providers = [
    ApplicationServiceProvider::class,
    new FooServiceProvider(),
];

$container = new \Azexsoft\Di\Container($bindings, $providers);

此外，您还可以在容器配置后添加绑定和提供者。重新绑定后，旧实例将从容器中删除。

$foo = $container->get(FooInterface::class); // will be returned Foo
$container->bind(FooInterface::class, OtherFoo::class);
$otherFoo = $container->get(FooInterface::class); // will be returned OtherFoo

注入器构建器的数组定义。适用于bind()和provide()方法。

$container->bind(Abstract::class, [
    '__class' => Concrete::class, // Concrete classname
    '__construct()' => [
        'simpleParam' => 123,
        'otherSimpleParam' => $params['concreteSomeParam'],
        'someObject' => new Definition(fn(Dependency $d) => $d->getSomeObject()),
    ],
    'someMethod()' => [
        'methodParam' => $params['someMethodParam'],
    ],
    'someProperty' => 321
]);

而不是

$container->bind(Abstract::class, function(Injector $injector, Dependency $d) use ($params) {
    $concrete = $injector->build(Concrete::class,  [
        'simpleParam' => 123,
        'otherSimpleParam' => $params['concreteSomeParam'],
        'someObject' => $d->getSomeObject(),
    ]);
    $concrete->someMethod($params['someMethodParam']);
    $concrete->someProperty = 321;
    return $concrete;
});