Armando Jeronymo has a B.Sc. in Electronics Engineering from Rio de Janeiro's Ursuline University and a US Associate degree in Risk Management. He started coding in a TI-59 calculator in the early 80's. He then learned and forgot Sinclair Basic, Fortran, Algol and MS Basic. For ten years he did not write code but worked with insurance and reinsurance in his native Brazil and London. Then he went back to programming to find out everything was different. He began by getting to know HTML to create some material on aviation instruction. He then learned Delphi's Pascal in order to create some financial applications. He began experimenting with server-side languages about the turn of the Century, first with ASP but soon moving to PHP. He wrote his first MySQL web application in about 2004. He switched to Linux in 2005 (Ubuntu 5.10 to be more exact) and has been developing LAMP systems since then. He is a Private Pilot and, whenever possible, a FlightGear flyer. He loves classical music and jazz (including Bossa Nova) and old movies. Besides computing he is professionally interested in business management and a follower of Peter Drucker's teaching. Married and father of a girl he is also an active member of his Rotary Club.

J Armando's articles

  1. Running Monte Carlo Simulations in PHP

    Although PHP isn’t known as a scientific or research programming language, Monte Carlo simulations can easily be written in PHP. The approach simply repeatedly runs a simulation many times over to calculate the most likely outcome. See how simulations can be written in PHP to solve real-world problems.

  2. Automate PSR Compliance through Jenkins

    It’s fine to follow your own private conventions when writing an isolated application like a small budget website, but collaborative work requires an agreement on common rules. To address this need and improve the interoperability of various PHP frameworks and programs, a group of developers have been preposing various PSR standards. This article will show you how you can enforce compliance with the PSR Coding Standards in your own code automatically by setting up PHP-CS-Fixer as a Jenkins CI task.

  3. Continuous Integration with Jenkins, Part 1

    Continuous integration is a software quality control technique that checks code integrity whenever small changes are made rather than waiting for all of the code to be finished before testing and debugging it. This is the first in a 2-part series introducing Jenkins and presents a big-picture overview of the sort of programming problems CI can solve.

  4. pChart Revisited with Google Analytics

    Back in December, PHPMaster published an introductory written by J Armando Jeronymo on pChart, a PHP library that creates eye-catching anti-aliased charts. A reader suggested that other articles might follow with further examples, and so he wrote this follow up with a handy device for visually checking website statistics using Google Analytics’ GAPI.

  5. How I Chose My Programming Editor

    A search for a product or service should begin with checking simple but essential qualities in a large set and then looking for refinements in those that pass the first test. Read this article to see how PHPMaster author J Armando Jeronymo chose his PHP editor.

  6. PHPMaster: Charting with pChart

    Created and maintained by Jean-Damien Pogolotti, a systems engineer based in Toulouse, France, pChart is a library that creates anti-aliased charts and graphs using PHP. It’s object-oriented code has been recently redesigned and makes it easy to add beautiful, eye-catching data. The library is free for non-profit use and for inclusion in GPL distributed software; licensing plans for other uses start at just 50€.

  7. Charting with pChart

    The pChart library allows programmers to present data in beautiful, eye-catching charts and graphs using PHP. The library is free for non-profit use and for inclusion in GPL distributed software. In this article you’ll see how to use pChart’s object-oriented interface to easily create bar charts and series charts.

  8. PHPMaster: Array Handling Functions

    In my previous article on PHP arrays I suggested a number of things that are tables and therefore can also be expressed as arrays. In this article I’ll use a pack of playing cards to explore some of the built-in array functions most often needed by PHP programmers. To highlight some of the array-handling functions PHP offers, I’ll be using some components of Buraco – a game very popular in my part of the world and quite similar to Rummy. Real-world Buraco is played with two decks (104 cards) plus two Joker cards

  9. Array Handling Functions

    PHP offers over 70 array-related functions and it’s important to develop a familiarity with them. This tutorial uses a deck of cards and the game Buraco to introduce some of the array functions you’ll use most often as a PHP developer.