Quick and dirty Instagram scraper

instagram-scraper.php

<?php

/**
 *  Instagram scraper
 *  
 *  Quick and dirty Instragram scraper for displaying a Instagram feed.
 *  
 *  Based on : https://gist.github.com/cosmocatalano/4544576
 *
 *  @param string $username  Instagram user account
 *  @param int    $numphotos Number of photos to display
 *  
 *  @return array $insta_feed Array of images data.
 */
function np_scrape_instagram( $username = '' , $numphotos = 6 ) {
    
    if( ! $username ){
        return new WP_Error( 'empty_username', __( 'Empty user name.') );
    }

    $remote = wp_remote_get( 'https://instagram.com/' . trim( $username ) );

    if( is_wp_error( $remote ) ){
        return new WP_Error( 'site_down', __( 'Unable to communicate with Instagram.' ) );
    }

    if ( 200 != wp_remote_retrieve_response_code( $remote ) ){
        return new WP_Error( 'invalid_response', __( 'Instagram did not return a valid response.' ) );
    }

    $shards      = explode( 'window._sharedData = ', $remote['body'] );
    $insta_json  = explode( ';</script>', $shards[1] );
    $insta_array = json_decode( $insta_json[0], true );

    if ( ! $insta_array ){
        return new WP_Error( 'bad_json', __( 'Instagram returned invalid data.' ) );
    }

    $images = ( isset( $insta_array['entry_data']['ProfilePage'][0]['user']['media']['nodes'] ) )
        ? $insta_array['entry_data']['ProfilePage'][0]['user']['media']['nodes']
        : '' ;

    $insta_feed = array();

    if( $images ) :

        foreach ( $images as $image ) {

            $insta_feed[] = array(
                'id'          => $image['id'],
                'description' => $image['caption'],
                'link'        => sprintf( '//www.instagram.com/p/%s/', $image['code'] ),
                'time'        => $image['date'],
                'comments'    => $image['comments']['count'],
                'likes'       => $image['likes']['count'],
                'thumbnail'   => $image['thumbnail_src'],
                'type'        => $image['__typename'],
                'height'      => $image['dimensions']['height'],
                'width'       => $image['dimensions']['width'],
            );

        }

    endif;

    return array_slice( $insta_feed, 0, $numphotos );
}