The SitePoint PHP blog has a tutorial posted that shows you how to "conquer" the Instagram API in your PHP application and integrate it into your application with the help of the Guzzle HTTP client.

Instagram’s API allows us to interact with data such as user info, media (photos and videos), likes, comments, and tags. For example, you can search for media around a specific location and filter the results by time. The API also allows us to post comments or like specific media. For now, only uploading media isn’t supported. You can always look at the API endpoints documentation if you want to know about the full functionality.

They start by talking about the two types of API calls (authenticated/unautheticated) and the limits that are included with each. From there the tutorial shows you how to register a new application, get a new client ID and how to use the API console to test out requests. Next they help you get the [Guzzle]((http://guzzle.readthedocs.org/en/latest/) library installed and connect it to the Instagram API with your client credentials. They integrate this into a simple Slim application using Twig as a templating layer to allow for the OAuth approval process, fetching an access token for the later requests.

With the connection made, they show you how to make requests to do thing like make tag searches, get user feed information (and searches), geographic searches and handling pagination. They also include a link to a PHP Instagram library that can help simplify the process, complete with code examples.

On the Master Zend Framework site Matthew Setter has a new tutorial showing how to pull in Instagram photo feeds in a Zend Framework 2 application via their on developer functionality.

In today’s tutorial, we’re going to learn how to retrieve and display an Instagram photo stream in Zend Framework 2. We’re going to cover the essentials of adding the libraries we’ll need to composer.json, handling authentication and then retrieving and displaying our photo stream in a controller action. We’ll be doing all of this by using composer to create a new Zend Framework 2 project, based on the ZF2 Skeleton App project and then add a new controller and action which will handle the work involved.

The tutorial uses a basic skeleton application and a PHP Instagram library to make the connection to their API. He shows you how to register your application with Instagram and set up the OAuth configuration to handle the authorization process. He walks you through the creation of the controller, setup of session support and the creation of a "photosAction" to view the results of the photo feed pull. He includes a screenshot of what the end result should look like with it all up and working.

On the 9Lessons blog there's a recent tutorial showing you how to log into Instagram via OAuth with the help of their Instagram class.

The very quick registration gives you many users to your web project, we already published login with Facebook, Twitter and Google Plus now time to think about very popular photo sharing portal Instagram. This post explains you how to login with instagram Oauth API and importing user data. Create an instagram account and take a quick look at this demo thanks!

The tutorial walks you through the process of setting up an application in the Instagram service, configuring the scripts with the API key/secret and callback as well as the code for a simple login page. They've also included code to grab the user's information and "popular media" from the web service and pull that information into a local MySQL database.

On SpyreStudios.com there's a post showing you how to connect to the Instagr.am API and pull data back with a bit of simple PHP.

The process of connecting into API data via OAuth is tricky. Some of the more notable social networks which have adopted this technology include Foursquare, Twitter, and Facebook. But Instagram is a very popular mobile app which has grown tremendously fast. Their recent API v1.0 release has some really neat features where you can pull popular photos, recent users, follower lists, and a whole bunch more.

He points to the Instagr.am PHP API scripts that the service already provides and shows how to set up an application on your Instagr.am account. This application then has OAuth keys you can use to connect to the service (via the PHP API scripts) and pull back basic user information - profile picture, number of photos, followers, etc. There's also a live demo you can test out.