php - How to get all images of hashtag in Instagram without API?

Question

This is the code that I used to get images of hashtag without API. I do not want to use any credentials. It does not require me to add either client_id or access token. But I only get 15 images. How can I get all the images?

 <div>

    <form action='#' method='post'>
    <input type='input' name='txttag' />
    <input type='submit' value='Get Image' />
    </form>

    </div>


    <?php 
    function scrape_insta_hash($tag) {
        $insta_source = file_get_contents('https://www.instagram.com/explore/tags/'.$tag.'/'); // instagrame tag url
        $shards = explode('window._sharedData = ', $insta_source);
        $insta_json = explode(';</script>', $shards[1]); 
        $insta_array = json_decode($insta_json[0], TRUE);
        return $insta_array; // this return a lot things print it and see what else you need
    }

    if(isset($_POST['txttag']))
    {
        $tag =$_POST['txttag']; // tag for which ou want images 
        $results_array = scrape_insta_hash($tag);
        $limit = 15; // provide the limit thats important because one page only give some images then load more have to be clicked
        $image_array= array(); // array to store images.
            for ($i=0; $i < $limit; $i++) { 
                $latest_array = $results_array['entry_data']['TagPage'][0]['tag']['media']['nodes'][$i];
                $image_data  = '<img src="'.$latest_array['thumbnail_src'].'">'; // thumbnail and same sizes 
                //$image_data  = '<img src="'.$latest_array['display_src'].'">'; actual image and different sizes 
                array_push($image_array, $image_data);
            }
            foreach ($image_array as $image) {
                echo $image;// this will echo the images wrap it in div or ul li what ever html structure 
            }
            //https://www.instagram.com/explore/tags/your-tag-name/
    }
    ?>



    <style>
    img {
      height: 200px;
      margin: 10px;
    }
    </style>

Answer 1

Easily way is request with ?__a=1 like https://www.instagram.com/explore/tags/girls/?__a=1 and receive JSON without parsing HTML and window._sharedData =

In json you can see page_info scope with end_cursor:

"page_info": {
    "has_previous_page": false,
    "start_cursor": "1381007800712523480",
    "end_cursor": "J0HWCVx1AAAAF0HWCVxxQAAAFiYA",
    "has_next_page": true
},

use end_cursor to request next portion of images:

https://www.instagram.com/explore/tags/girls/?__a=1&max_id=J0HWCVx1AAAAF0HWCVxxQAAAFiYA

UPD:

<?php

$baseUrl = 'https://www.instagram.com/explore/tags/girls/?__a=1';
$url = $baseUrl;

while(1) {
    $json = json_decode(file_get_contents($url));
    print_r($json->tag->media->nodes);
    if(!$json->tag->media->page_info->has_next_page) break;
    $url = $baseUrl.'&max_id='.$json->tag->media->page_info->end_cursor;
}