Bir Command oluşturarak kullanabilirsiniz. ptt den direk bütün Şehir İlçe ve ilçelerin mahallerini oluşturan bir json çıktısı veriyor isterseniz çıktıyı db'ye de kaydedebilirsiniz. Umarım İşinize yarar

https://github.com/koti42/turkish-citizen-list-api

<?php

namespace App\Console\Commands;

use Illuminate\Console\Command;
use GuzzleHttp\Client;
use GuzzleHttp\Cookie\CookieJar;
use Illuminate\Support\Facades\Storage;

class ScrapePttAddress extends Command
{
    protected $signature = 'scrape:ptt-address';
    protected $description = 'PTT posta kodu sisteminden tüm adres verilerini çeker';

    private $baseUrl = 'https://postakodu.ptt.gov.tr';
    private $client;
    private $cookieJar;
    private $totalProvinces = 0;
    private $currentProvince = 0;
    private $totalDistricts = 0;
    private $currentDistrict = 0;
    private $totalNeighborhoods = 0;

    public function __construct()
    {
        parent::__construct();
        $this->cookieJar = new CookieJar();
        $this->client = new Client([
            'cookies' => $this->cookieJar,
            'headers' => [
                'User-Agent' => 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) Chrome/120.0.0.0',
                'Accept' => 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
                'Content-Type' => 'application/x-www-form-urlencoded; charset=UTF-8'
            ]
        ]);
    }

    public function handle()
    {
        try {
            $this->output->title('PTT Adres Verisi Çekme İşlemi Başlatılıyor');
            $addressData = [];

            $response = $this->client->get($this->baseUrl);
            $html = (string) $response->getBody();

            if (!preg_match('/MainContent_DropDownList1".*?>(.*?)<\/select>/s', $html, $provinceSelect)) {
                throw new \Exception('İl listesi bulunamadı');
            }

            preg_match_all('/<option value="(\d+)">([^<]+)<\/option>/', $provinceSelect[1], $matches, PREG_SET_ORDER);

            $this->totalProvinces = count($matches) - 1;

            $mainProgress = $this->output->createProgressBar($this->totalProvinces);
            $mainProgress->setFormat(
                "\n%current%/%max% [%bar%] %percent:3s%%\n" .
                "%message%\n"
            );

            $mainProgress->start();

            foreach ($matches as $match) {
                if ($match[1] == '-1') continue;

                $provinceId = $match[1];
                $provinceName = $this->cleanText($match[2]);

                $mainProgress->setMessage("<fg=blue> {$provinceName} ili işleniyor...</>");

                preg_match('/__VIEWSTATE" value="([^"]+)"/', $html, $viewstateMatch);
                preg_match('/__EVENTVALIDATION" value="([^"]+)"/', $html, $eventvalidationMatch);

                $response = $this->client->post($this->baseUrl, [
                    'form_params' => [
                        '__EVENTTARGET' => 'ctl00$MainContent$DropDownList1',
                        '__EVENTARGUMENT' => '',
                        '__VIEWSTATE' => $viewstateMatch[1],
                        '__EVENTVALIDATION' => $eventvalidationMatch[1],
                        'ctl00$MainContent$DropDownList1' => $provinceId
                    ]
                ]);

                $districtHtml = (string) $response->getBody();

                if (!preg_match('/MainContent_DropDownList2".*?>(.*?)<\/select>/s', $districtHtml, $districtSelect)) {
                    continue;
                }

                preg_match_all('/<option value="(\d+)">([^<]+)<\/option>/', $districtSelect[1], $districtMatches, PREG_SET_ORDER);

                $this->totalDistricts = count($districtMatches) - 1;
                $this->currentDistrict = 0;

                $districtProgress = $this->output->createProgressBar($this->totalDistricts);
                $districtProgress->setFormat(
                    "  %current%/%max% [%bar%] %percent:3s%%\n" .
                    "  %message%\n"
                );
                $districtProgress->start();

                $currentProvince = [
                    'il_id' => $provinceId,
                    'il_adi' => $provinceName,
                    'ilceler' => []
                ];

                foreach ($districtMatches as $district) {
                    if ($district[1] == '-1') continue;

                    $districtId = $district[1];
                    $districtName = $this->cleanText($district[2]);

                    $districtProgress->setMessage("<fg=yellow> {$districtName} ilçesi işleniyor...</>");

                    $neighborhoods = $this->getNeighborhoods($districtHtml, $provinceId, $districtId);

                    $currentProvince['ilceler'][] = [
                        'ilce_id' => $districtId,
                        'ilce_adi' => $districtName,
                        'mahalleler' => $neighborhoods
                    ];

                    if (empty($addressData)) {
                        $addressData[] = $currentProvince;
                    } else {
                        $lastIndex = count($addressData) - 1;
                        if ($addressData[$lastIndex]['il_id'] === $provinceId) {
                            $addressData[$lastIndex] = $currentProvince;
                        } else {
                            $addressData[] = $currentProvince;
                        }
                    }

                    Storage::put(
                        'ptt_address_data.json',
                        json_encode($addressData, JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT)
                    );

                    $this->currentDistrict++;
                    $districtProgress->advance();
                    sleep(1);
                }

                $districtProgress->finish();
                $mainProgress->advance();
                sleep(2);
            }

            $mainProgress->finish();

            $this->output->success(sprintf(
                "\n\nİşlem tamamlandı!\n" .
                "Toplam %d il, %d ilçe ve %d mahalle verisi çekildi.",
                $this->totalProvinces,
                $this->totalDistricts * $this->totalProvinces,
                $this->totalNeighborhoods
            ));

        } catch (\Exception $e) {
            $this->error('Hata: ' . $e->getMessage());
            return Command::FAILURE;
        }
    }

    private function getNeighborhoods($districtHtml, $provinceId, $districtId)
    {
        preg_match('/__VIEWSTATE" value="([^"]+)"/', $districtHtml, $newViewstateMatch);
        preg_match('/__EVENTVALIDATION" value="([^"]+)"/', $districtHtml, $newEventvalidationMatch);

        $response = $this->client->post($this->baseUrl, [
            'form_params' => [
                '__EVENTTARGET' => 'ctl00$MainContent$DropDownList2',
                '__EVENTARGUMENT' => '',
                '__VIEWSTATE' => $newViewstateMatch[1],
                '__EVENTVALIDATION' => $newEventvalidationMatch[1],
                'ctl00$MainContent$DropDownList1' => $provinceId,
                'ctl00$MainContent$DropDownList2' => $districtId
            ]
        ]);

        $neighborhoodHtml = (string) $response->getBody();
        $neighborhoods = [];

        if (preg_match('/MainContent_DropDownList3".*?>(.*?)<\/select>/s', $neighborhoodHtml, $neighborhoodSelect)) {
            preg_match_all('/<option value="([^"]+)">([^<]+)<\/option>/', $neighborhoodSelect[1], $neighborhoodMatches, PREG_SET_ORDER);

            foreach ($neighborhoodMatches as $neighborhood) {
                if ($neighborhood[1] == '-1') continue;

                $neighborhoodName = $this->cleanText($neighborhood[2]);

                preg_match('/(\d{5})/', $neighborhoodName, $postalCodeMatch);
                $postaKodu = $postalCodeMatch[1] ?? null;

                $neighborhoodName = preg_replace('/\s*\/\s*.*$/', '', $neighborhoodName);

                $neighborhoods[] = [
                    'mahalle_id' => $this->cleanId($neighborhood[1]),
                    'mahalle_adi' => $neighborhoodName,
                    'posta_kodu' => $postaKodu
                ];

                $this->totalNeighborhoods++;
                $this->line("    <fg=green> {$neighborhoodName} mahallesi eklendi.</>");
            }
        }

        return $neighborhoods;
    }

    private function cleanText($text)
    {
        $text = html_entity_decode($text, ENT_QUOTES | ENT_HTML5, 'UTF-8');

        // Başındaki ve sonundaki boşlukları temizle
        $text = trim($text);

        $text = preg_replace('/\s+/', ' ', $text);

        $text = str_replace([
            '&#214;', '&#220;', '&#199;', '&#286;', '&#304;', '&#350;',
            'Ö', 'Ü', 'Ç', 'Ğ', 'İ', 'Ş', 'ö', 'ü', 'ç', 'ğ', 'ı', 'ş'
        ], [
            'O', 'U', 'C', 'G', 'I', 'S',
            'O', 'U', 'C', 'G', 'I', 'S', 'o', 'u', 'c', 'g', 'i', 's'
        ], $text);

        return $text;
    }

    private function cleanId($id)
    {
        $id = str_replace(['\\', '/'], '_', $id);

        $id = preg_replace('/[^a-zA-Z0-9_]/', '', $id);

        return $id;
    }
}