yii\mutex\PgsqlMutex::getKeysFromName PHP Method

Converts a string into two 16 bit integer keys using the SHA1 hash function.

private getKeysFromName ( string $name ) : array
$name	string
return	array	contains two 16 bit integer keys

    private function getKeysFromName($name)
    {
        return array_values(unpack('n2', sha1($name, true)));
    }

PgsqlMutex