CI3 Fake Date Dumper with Intervals

seed.php

<?php

# Creates an array first with given numbers
# Dumps it to db with 250 records/insert intervals
# You may need to adjust your php settings:
# ini_set('memory_limit', '1024M');
# ini_set('max_execution_time', 300); //300 seconds = 5 minutes

/**
 * Users Seeds
 * @param  integer $number_of_users
 */
public function seed_users_users($number_of_users = 200000)
{
    $_tbl = 'v_users';
    $data = array();
    for ($i=0; $i < $number_of_users; $i++) {
        $faker = Faker\Factory::create();
        $data[$i] = new stdClass();
        $data[$i]->last_name  = $faker->lastName;
        $data[$i]->username = $faker->userName;
        $data[$i]->password = $faker->password(8);
        $data[$i]->salt = $faker->password(24);
        $data[$i]->sex = $faker->randomElement(array ('m','f','u'));

        switch ($data[$i]->sex) {
            case "m":
                $data[$i]->first_name = $faker->firstNameMale;
                break;
            case "f":
                $data[$i]->first_name = $faker->firstNameFemale;
                break;
            default:
                $data[$i]->first_name = $faker->firstName;
        }

        $data[$i]->birthday = $faker->dateTimeBetween('-30 years', '-20 years')
            ->format('Y-m-d');
        $data[$i]->tcno = null;
        $data[$i]->last_login = null;
        $data[$i]->current_login = null;
        $data[$i]->created_at = $faker->dateTimeBetween('-3 months', 'now')
            ->format('Y-m-d H:i:s');
        $data[$i]->updated_at = null;
        $data[$i]->deleted_at = null;
        $data[$i]->suspended_at = null;
        $data[$i]->banned_at = null;
        $data[$i]->promo_code = null;
        $data[$i]->system_messages_synced_at = null;
        $data[$i]->group_id = $faker->numberBetween(1,8);
        $data[$i]->role_id = $faker->numberBetween(1,6);
        $data[$i]->is_opt_in = $faker->boolean(70);
    }

    $this->db->truncate($_tbl);

    $partial_counter = 1;
    $global_counter  = 1;
    $total_count     = count($data);
    if($total_count > 250) {
        $partial  = array();
        $last_lot = $total_count % 250;
        foreach ($data as $row) {
            $partial[$partial_counter] = $row;
            if (($partial_counter % 250) == 0) {
                $this->db->insert_batch($_tbl, $partial);
                $partial = array();
                $partial_counter = 0;
            }

            if($last_lot) {
                if($global_counter == $total_count) {
                    $this->db->insert_batch($_tbl, $partial);
                    $partial = array();
                    $partial_counter = 0;
                }
            }
            $partial_counter++;
            $global_counter++;
        }
    } else {
        foreach ($data as $row) {
            $partial[$global_counter] = $row;

            if($global_counter == $total_count) {
               $this->db->insert_batch($_tbl, $partial);
            }

            $global_counter++;
        }
    }
}