igdown.php

<?php

require 'vendor/autoload.php';

use Curl\Curl;

class InstagramDownloader
{
    private Curl $curl;
    private string|null $url;

    public function __construct(string|null $url = null)
    {
        $this->curl = new Curl();
        $this->url = $url;
    }

    public function download(): array
    {
        $this->curl->setHeader('Content-Type', 'application/x-www-form-urlencoded');
        $this->curl->setHeader(
            'User-Agent',
            'Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Mobile Safari/537.36'
        );
        $this->curl->setHeader('Referer', 'https://instasave.website/download');

        $this->curl->post('https://api.instasave.website/media', [
            'url' => $this->url,
            'lang' => 'en'
        ]);

        if ($this->curl->error) {
            return ["error" => $this->curl->errorMessage];
        }


        preg_match_all('/"https:\/\/\S*?"/', $this->curl->response, $matches);

        $photo = isset($matches[0][0]) ? trim($matches[0][0], '"') : null;
        $video = isset($matches[0][1]) ? trim($matches[0][1], '"') : null;

        return [
            'video' => $video,
            'photo' => $photo,
            'matches' => $matches
        ];
    }

    public function __destruct()
    {
        $this->curl->close();
    }
}

header("Content-Type: application/json; charset=UTF-8");

if (!isset($_GET['url'])) {
    echo json_encode(["error" => "Invalid URL!"], JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES);
} else {
    $downloader = new InstagramDownloader($_GET['url']);
    $data = $downloader->download();
    echo json_encode($data, JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES);
}