Generates a random ID avoiding collisions.

Parameters

bool $string: (optional) Whether the id should have string type. Defaults to FALSE.

Return value

int|string The entity identifier.

File

core/modules/system/src/Tests/Entity/EntityUnitTestBase.php, line 197

Class

EntityUnitTestBase

Defines an abstract test base for entity unit tests.

Namespace

Drupal\system\Tests\Entity

Code

protected function generateRandomEntityId($string = FALSE) {
    srand(time());
    do {
        // 0x7FFFFFFF is the maximum allowed value for integers that works for all
        // Drupal supported databases and is known to work for other databases
        // like SQL Server 2014 and Oracle 10 too.
        $id = $string ? $this->randomMachineName() : mt_rand(1, 0x7fffffff);
    } while (isset($this->generatedIds[$id]));
    $this->generatedIds[$id] = $id;
    return $id;
}

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