请求协助编写适配Instagram新规则的完整头像查看PHP脚本

I’ve converted your manual two-step process into a reusable PHP function tailored for WordPress. This handles fetching the user ID first, then pulling the full-size avatar URL, with proper error handling and WordPress best practices:

function get_instagram_full_size_avatar($username) {
    // Step 1: Grab the user ID from Instagram's public profile endpoint
    $profile_endpoint = "https://www.instagram.com/{$username}/?_a=1";
    
    // Set a realistic user agent to avoid being blocked (Instagram flags generic bots)
    $request_args = array(
        'headers' => array(
            'User-Agent' => 'Mozilla/5.0 (Macintosh; Intel Mac OS X 13_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36'
        ),
        'timeout' => 10
    );
    
    // Fetch the profile data
    $profile_response = wp_remote_get($profile_endpoint, $request_args);
    
    // Handle request failures
    if (is_wp_error($profile_response)) {
        return false;
    }
    
    $profile_body = wp_remote_retrieve_body($profile_response);
    $profile_data = json_decode($profile_body, true);
    
    // Make sure we can extract the user ID
    if (!isset($profile_data['graphql']['user']['id'])) {
        return false;
    }
    
    $user_id = $profile_data['graphql']['user']['id'];
    
    // Step 2: Fetch the full-size avatar using the user ID
    $avatar_endpoint = "https://i.instagram.com/api/v1/users/{$user_id}/info/";
    
    $avatar_response = wp_remote_get($avatar_endpoint, $request_args);
    
    if (is_wp_error($avatar_response)) {
        return false;
    }
    
    $avatar_body = wp_remote_retrieve_body($avatar_response);
    $avatar_data = json_decode($avatar_body, true);
    
    // Extract the highest-res avatar URL (with fallback)
    if (isset($avatar_data['user']['hd_profile_pic_url_info']['url'])) {
        return $avatar_data['user']['hd_profile_pic_url_info']['url'];
    } elseif (isset($avatar_data['user']['profile_pic_url_hd'])) {
        // Fallback in case Instagram changes the response structure
        return $avatar_data['user']['profile_pic_url_hd'];
    } else {
        return false;
    }
}

How to Use This in Your WordPress Site: #

Call the function wherever you need to display the avatar—for example, in your theme’s template files or a custom plugin:

$instagram_username = "target_username";
$full_size_avatar = get_instagram_full_size_avatar($instagram_username);

if ($full_size_avatar) {
    // Output the image safely with WordPress's esc_url
    echo '<img src="' . esc_url($full_size_avatar) . '" alt="Instagram Profile Avatar">';
} else {
    echo 'Sorry, we couldn’t fetch the Instagram avatar.';
}

Key Things to Keep in Mind: #

• Avoid Getting Blocked: Instagram limits requests from non-official sources. Add caching with wp_cache_set and wp_cache_get to store the avatar URL for 24–48 hours instead of fetching it every time.
• User Agent Updates: If the function stops working, try updating the User-Agent string to match a modern browser’s.
• Endpoint Changes: These are Instagram’s private, unendorsed endpoints—they can change at any time. If the function breaks, check the JSON responses to see if the structure has been updated.

内容的提问来源于stack exchange，提问作者Nolan Anderson