attributes.php

<?php

<<ORM\Entity(["repositoryClass" => "UserRepository"])>>
class User
{
  <<ORM\Id>>
  <<ORM\Column(["type" => "string", "options" => ["default" => "1234"]])>>
  <<ORM\GeneratedValue>>
  private $id;
  
  <<ORM\OneToMany(["targetEntity" => "Group", "joinColumns" => ["columnName" => "group_id", "referenceColumnName" => "id"]])>>
  private $groups;
}

$reflClass = new ReflectionClass("User");
var_dump($attributes);
// prints ["ORM\Entity" => [0 => ["repositoryClass" => "UserRepository"]]]

$idProperty = $reflClass->getProperty("id");
var_dump($idProperty->getAttributes());
/* prints 
[
  "ORM\Id" => [],
  "ORM\Column" => [0 => ["type" => "string", "options" => ["default" => "1234"]]],
  "ORM\GeneratedValue" => []
]
*/
$groupProperty = $reflClass->getProperty("groups");
var_dump($groupProperty->getAttributes())
/* prints
[
   "ORM\OneToMany" => [
      [
      "targetEntity" => "Group",
      "joinColumns" => ["columnName" => "group_id", "referenceColumnName" => "id"]
      ]
    ]
]
*/