This file for make records to part. For example, i create seeder by laravel.

ExampleSeeder.stub

<?php

use App\{{ table }};
use Illuminate\Database\Seeder;

class {{ table }}Part{{ key }}Seeder extends Seeder
{
    /**
     * Run the database seeds.
     *
     * @return void
     */
    public function run()
    {
        $array = '{{ array }}';

		foreach(json_decode($array) as $val) { {{ table }}::create( (array) $val ); }		
    }
}

MakeRecordsToPart.php

<?php
Class MakeRecordsToPart
{

	protected $mysqli;
	protected $table;
	protected $next;
	protected $page;
	protected $limit = 1000;

	public function __construct($host, $username, $password, $database, $table)
	{

		$this->mysqli = new mysqli($host, $username, $password, $database);

		if ($this->mysqli->connect_errno) {
		    printf("Connect failed: %s\n", $this->mysqli->connect_error);
		    exit();
		}

		$this->table = $table;
	}

	protected function alltable()
	{
		return $this->mysqli->query("SELECT * FROM ".$this->table);
	}

	public function total()
	{
		return mysqli_num_rows($this->alltable());
	}

	public function getLimit()
	{
		return $this->limit;
	}

	public function setLimit($limit)
	{
		$this->limit = $limit;
	}

	public function getPage()
	{
		return $this->page;
	}

	public function setPage($page)
	{
		$this->page = $page;
	}

	public function column($column = '')
	{
		foreach ($this->alltable()->fetch_fields() as $k) {
			$column[] = $k->name;
		}
		
		return (is_array($column) ? implode(', ', $column) : $column);
	}

	protected function queryLimit()
	{
		if($this->page || $this->page == '0') {
			$pages = (strpos($this->page, '-')) ?
				explode('-', $this->page)[1] - (explode('-', $this->page)[0]): $this->page;
			$this->next = (strpos($this->page, '-')) ? explode('-', $this->page)[0] : 0;

			for ($i=1; $i <= $pages ; $i++) { 
				$query[$i] = "SELECT ".$this->column()." FROM ".$this->table." LIMIT  ".($this->next + $i - 1 ) * $this->limit.", ".$this->limit;		
			}
		} else {
			for ($i=1; $i <= floor($this->total()/$this->limit)+1; $i++) { 
				$query[$i] = ($i == 1) ? "SELECT ".$this->column()." FROM ".$this->table." LIMIT  0, ".$this->limit : 
					"SELECT ".$this->column()." FROM ".$this->table." LIMIT  ".($i-1)*$this->limit.", ".$this->limit;
			}
		}

		return $query;
	}

	protected function toJson($query)
	{
		$data = [];
		while($row = $query->fetch_array(MYSQLI_ASSOC))
		{
			$data[] = json_encode($row);
		}
		$datas = '['.implode(',', $data).']';
		
		return $datas;
	}

	protected function results()
	{
		for ($i=1; $i <= count($this->queryLimit()) ; $i++) {
			$query = $this->mysqli->query($this->queryLimit()[$i]);
			$json[$i] = $this->toJson($query);
		}

		return $json;
	}

	public function makeFile($fileName = '', $str = [])
	{
		$json = $this->results();
		$fileName = ($fileName) ? $fileName : 'ExampleSeeder.stub';
		$str = ($str) ? $str :['{{ array }}', '{{ table }}', '{{ key }}'];

		foreach ($json as $key => $value) {
			if($value != '[]') { $data[$key] = [$value, ucfirst($this->table), (($this->next) ? $this->next+$key-1 : $key)]; }
		}

		if($this->checkIfExists($fileName, $str)) {
			foreach ($data as $key => $value) {
				$file = file_get_contents($fileName);
				$key = ($this->next) ? $this->next+$key-1 : $key;
				if(!file_exists('seeder/'.ucfirst($this->table))) { mkdir('seeder/'.ucfirst($this->table) ,0755, true);}
				file_put_contents("seeder/".ucfirst($this->table)."/".ucfirst($this->table)."Part".$key."Seeder.php", $this->toReplace($str, $value, $file));
			}
		}else {
			echo "Sorry, file doesn't exists!";
		}
	} 

	protected function checkIfExists($fileName, $str)
	{
		foreach ($str as $s) {
			return (strpos(file_get_contents($fileName), $s) !== false) ? true : false;
		}
	}

	protected function toReplace($search, $replace, $file)
	{
		return strtr($file, array_combine($search, $replace));
	}
}

// How to use.
$file = new MakeRecordsToPart('HOSTNAME', 'USERNAME', 'PASSWORD','DATABASE', 'TABLE');
echo "Total record : ".$file->total()."\n";
$file->setLimit(10);
$file->setPage('1-5'); // or $file->setPage('0')
$file->makeFile();