If you are using the Parse Android SDK in your mobile app, you are able to customise the push notification icon by updating your AndroidManifest.xml file. This method also applies if you are using Parse in a Cordova / PhoneGap app.
In a recent project, I’ve been using public/private key encryption to transmit data from a mobile application to an API, keeping sensitive information secure as a result. This tutorial explains how you can create your own keys, and then use them to encrypt or decrypt data using PHP and OpenSSL.Encryption, PHP, Public / Private Keys, Security, Tutorial
Facebook has released the latest update to the Graph API, resulting in more drastic changes and deprecations to the platform. Released on July 8th 2015, the latest version of the API removes access to the user’s Notifications, Inbox and Stream and Groups.API, Deprecation, Facebook, Facebook Graph API
As version v4.1 of the Facebook PHP SDK nears release (at time of writing), I though this would be a good time to explain how the new version works. Migrating your application from v4.0.x to v4.1.x will break your application.Facebook, Facebook Graph API, Facebook PHP SDK 4.1, PHP, Tutorial