CategoryPHP

April 5, 2011 — In this article, Andy Croxall looks at how to combine JavaScript/jQuery with PHP and, particularly, PHP’s GD library to create an image manipulation tool to upload an image, then crop it, and finally save the revised version to the server. Read more…

March 8, 2011 — Plugins are a major part of why WordPress powers millions of blogs and websites around the world. The ability to extend WordPress to meet just about any need is a powerful motivator for choosing WordPress over other alternatives. Read more…

January 11, 2011 — In my last article, I spoke about several common mistakes that show up in web applications. Of these, the one that causes the most trouble is insufficient input validation/sanitization. In this article, I’m joined by my colleague Peter (evilops) Ellehauge in looking at input filtering in more depth while picking on a few real examples that we’ve seen around the web. Read more…

December 13, 2010 — An important website has gone down, and sooner or later, heads will turn to the Web development corner of the office, where you are sitting quietly, minding your own business, regretting that you ever mentioned “Linux” on your CV. You need to take action. Your company needs you. Your client needs you. Here’s what to do. Read more…

October 18, 2010 — Web application developers today need to be skilled in a multitude of disciplines. It’s necessary to build an application that is user friendly, highly performant, accessible and secure, all while executing partially in an untrusted environment that you, the developer, have no control over. I speak, of course, about the User Agent. Most commonly seen in the form of a web browser, but in reality, one never really knows what’s on the other end of the HTTP connection. Read more…

April 15, 2010 — In this article, I’ll introduce you to the fundamentals of PHP. We’ll focus on using PHP to access Web services and on turning static HTML pages into dynamic ones by retrieving data from the Web and by showing different content depending on what the user has entered in a form or requested in the URL. Read more…

January 14, 2010 — The purpose of this article is to raise awareness and perhaps make some of that website security mumbo-jumbo a bit more understandable to you. Read more…

January 6, 2010 — Website performance is a hugely important topic, for big companies such as Google, Yahoo, Amazon, eBay, slow websites mean fewer users, less happy users, and thus lost revenue and reputation. Read more…

December 14, 2009 — Two weeks ago we published the first part of this article, covering multiple column content techniques and associating pages with post content; we discussed how to use the “More”-tag, hide standalone categories from the category list and retain the page layout for post views within a category page. This article presents the second part of the article; it covers customizing basic content administration and adding features to the post and page editor in WordPress. You would like to see more similar articles in the future? Let us know in the comments to this post! Read more…

November 25, 2009 — Back in July, Power Tips for WordPress Template Developers presented 8 basic techniques for adding popular features to the front end of a WordPress-powered website. The premise was that WordPress has become an elegant, lightweight content management solution that offers the fundamentals out of the box, atop a modular core that offers incredible potential in the hands of a capable developer. Read more…