implements Phalcon\DiInterface, ArrayAccess
Phalcon\Di is a component that implements Dependency Injection/Service Location of services and it’s itself a container for them. Since Phalcon is highly decoupled, Phalcon\Di is essential to integrate the different components of the framework. The developer can also use this component to inject dependencies and manage global instances of the different classes used in the application. Basically, this component implements the Inversion of Control pattern. Applying this, the objects do not receive their dependencies using setters or constructors, but requesting a service dependency injector. This reduces the overall complexity, since there is only one way to get the required dependencies within a component. Additionally, this pattern increases testability in the code, thus making it less prone to errors.
$di = new \Phalcon\Di(); //Using a string definition $di->set("request", "Phalcon\Http\Request", true); //Using an anonymous function $di->set("request", function(){ return new \Phalcon\Http\Request(); }, true); $request = $di->getRequest();
Methods
public __construct ()
Phalcon\Di constructor
public setInternalEventsManager (Phalcon\Events\ManagerInterface $eventsManager)
Sets the internal event manager
public getInternalEventsManager ()
Returns the internal event manager
public set (mixed $name, mixed $definition, [mixed $shared])
Registers a service in the services container
public setShared (mixed $name, mixed $definition)
Registers an “always shared” service in the services container
public remove (mixed $name)
Removes a service in the services container It also removes any shared instance created for the service
public attempt (mixed $name, mixed $definition, [mixed $shared])
Attempts to register a service in the services container Only is successful if a service hasn’t been registered previously with the same name
public setRaw (mixed $name, Phalcon\Di\ServiceInterface $rawDefinition)
Sets a service using a raw Phalcon\Di\Service definition
public getRaw (mixed $name)
Returns a service definition without resolving
public getService (mixed $name)
Returns a Phalcon\Di\Service instance
public get (mixed $name, [mixed $parameters])
Resolves the service based on its configuration
public mixed getShared (string $name, [array $parameters])
Resolves a service, the resolved service is stored in the DI, subsequent requests for this service will return the same instance
public has (mixed $name)
Check whether the DI contains a service by a name
public wasFreshInstance ()
Check whether the last service obtained via getShared produced a fresh instance or an existing one
public getServices ()
Return the services registered in the DI
public offsetExists (mixed $name)
Check if a service is registered using the array syntax
public boolean offsetSet (string $name, mixed $definition)
Allows to register a shared service using the array syntax
$di["request"] = new \Phalcon\Http\Request();
public offsetGet (mixed $name)
Allows to obtain a shared service using the array syntax
var_dump($di["request"]);
public offsetUnset (mixed $name)
Removes a service from the services container using the array syntax
public __call (string $method, [array $arguments])
Magic method to get or set services using setters/getters
public static setDefault (Phalcon\DiInterface $dependencyInjector)
Set a default dependency injection container to be obtained into static methods
public static getDefault ()
Return the latest DI created
public static reset ()
Resets the internal default DI
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