Automatic values for updated_at, created_at in Doctrine

by
  1. You can call $this->setCreatedAt(new \DateTime()) in __construct method.
  2. You can use Life Cycle Callbacks
/**
 * @ORM\PrePersist
 * @ORM\PreUpdate
*/
public function updatedTimestamps(): void
{
    $this->setUpdatedAt(new \DateTime('now'));    
    if ($this->getCreatedAt() === null) {
        $this->setCreatedAt(new \DateTime('now'));
    }
}

And don’t forget to add into entity class notation:
@ORM\HasLifecycleCallbacks

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