chill-bundles/src/Bundle/ChillPersonBundle/DataFixtures/Helper/PersonRandomHelper.php

<?php

namespace Chill\PersonBundle\DataFixtures\Helper;

use Chill\PersonBundle\Entity\Person;
use Doctrine\ORM\EntityManagerInterface;

trait PersonRandomHelper
{
    private array $randPersons = [];
    private ?int $countPersons = null;

    protected function getRandomPerson(EntityManagerInterface $em): Person
    {
        $fetchBy = 5;
        if (null === $this->countPersons) {
            $qb = $em->createQueryBuilder();
            $this->countPersons = $qb->select('count(p)')
                ->from(Person::class, 'p')
                ->getQuery()
                ->getSingleScalarResult()
                ;
        }

        if ([] === $this->randPersons) {
            $qb = $em->createQueryBuilder();
            $this->randPersons = $qb
                ->select('p')
                ->from(Person::class, 'p')
                ->getQuery()
                ->setFirstResult(\random_int(0, $this->countPersons - $fetchBy))
                ->setMaxResults($fetchBy)
                ->getResult()
                ;
        }

        return \array_pop($this->randPersons);
    }

}