Use PHP8 typed properties

Use property type

core/dto.md

@@ -20,7 +20,7 @@ use Symfony\Component\Validator\Constraints as Assert;
 final class UserResetPasswordDto
 {
     #[Assert\Email]
-    public $email;
+    public string $email;
 }
 ```
 

core/events.md

@@ -103,11 +103,8 @@ use Symfony\Component\Mailer\MailerInterface;
 
 final class BookMailSubscriber implements EventSubscriberInterface
 {
-    private $mailer;
-
-    public function __construct(MailerInterface $mailer)
+    public function __construct(private MailerInterface $mailer)
     {
-        $this->mailer = $mailer;
     }
 
     public static function getSubscribedEvents()

core/identifiers.md

@@ -24,11 +24,8 @@ use App\Uuid;
 #[ApiResource(provider: PersonProvider::class)]
 final class Person
 {
-    /**
-     * @var Uuid
-     */
     #[ApiProperty(identifier: true)]
-    public $code;
+    public Uuid $code;
 
     // ...
 }
@@ -214,12 +211,9 @@ final class Person
     #[ApiProperty(identifier: false)]
     private ?int $id = null;
 
-    /**
-     * @var Uuid
-     */
     #[ORM\Column(type: 'uuid', unique: true)]
     #[ApiProperty(identifier: true)]
-    public $code;
+    public Uuid $code;
 
     // ...
 }

core/serialization.md

@@ -548,13 +548,10 @@ use Symfony\Component\Serializer\Annotation\Groups;
 class Person
 {
     #[Groups('person')]
-    public $name;
+    public string $name;
 
-   /**
-    * @var Person
-    */
     #[Groups('person')]
-   public $parent;  // Note that a Person instance has a relation with another Person.
+   public ?Person $parent;  // Note that a Person instance has a relation with another Person.
 
     // ...
 }
@@ -607,7 +604,7 @@ class Person
 
    #[Groups('person')]
    #[ApiProperty(readableLink: false, writableLink: false)]
-   public Person $parent;  // This property is now serialized/deserialized as an IRI.
+   public ?Person $parent;  // This property is now serialized/deserialized as an IRI.
 
     // ...
 }
@@ -808,9 +805,8 @@ class Greeting
     #[Groups("greeting:collection:get")]
     private ?int $id = null;
 
-    private $a = 1;
-
-    private $b = 2;
+    private int $a = 1;
+    private int $b = 2;
 
     #[ORM\Column]
     #[Groups("greeting:collection:get")]
@@ -1182,7 +1178,7 @@ class Book
     // ...
 
     #[ApiProperty(identifier: true)]
-    private $id;
+    private ?int $id;
 
     /**
      * This field can be managed only by an admin