That’s right—thanks to Nexmo, June’s issue on APIs is free of charge for the month! To download the free issue:

• If you already have a php[architect] account, then you already own it!  We’ve given it to you already for free.  Just log in and check your account page.
• If you are new to php[architect]—Welcome!  Just add the magazine to your cart, check out, and create an accoutn. The June issue will be discounted to $0! No credit card transaction required (unless you add other items to your cart).

As I was trying to write what APIs are, I found that Vangie Beal sums it up best (on Webopedia) when he wrote:

“API, an abbreviation of application program interface, is a set of routines, protocols, and tools for building software applications. The API specifies how software components should interact and APIs are used when programming graphical user interface (GUI) components.  A good API makes it easier to develop a program by providing all the building blocks. A programmer then puts the blocks together.”

D. Keith Casey, Jr. tells us how to make sure your API helper libraries are complete, relevant, and appropriate in SPOIL Your Users with Great Helper Libraries. Simone Di Maulo shows us how to create High Performance APIs. Ian Littman writes on using Aura to build APIs in Putting the Pieces Together: Building APIs with Aura (and Other) Libraries. Tim Lytle equips us with The API Toolbox. Coming off the heels of php[tek]2015, Quentin T. Schmick Jr. discusses the app, HelpWanted.json, that percolated out of an Open Spaces session in Help Wanted.

In Education Station, Matthew Setter talks on Hands-on Dependency Injection in PHP. In this month’s Leveling Up, David Stockton discuss DateTime in Getting a Date with PHP. Joe Devon has an interview with Symfony creator Vincent Pontencier and has a php[tek] roundup in this month’s Community Corner. finally{}, Eli White asks Where are All of the Programmers?

Did I mention that this issue is Free until the next one comes out courtesy of Nexmo? Yes? Good.