Two-factor authentication using the time-based one-time password algorithm can be easily implemented with PHP on any web server. This standardized method is widely used as an additional security measure for logins and uses smartphone apps, e.g. the Google or Microsoft Authenticator, as a second factor.
Web push notifications allow users to opt-in to asynchronous messages from a server to a web application. The message can be sent at any time, even when the web application or the web browser is inactive. This W3C standard, based on the HTTP/2 protocol, is now supported by Chrome, Firefox, Edge, Opera, and Safari – but not by iOS.
Playing around with the idea of Alexa Skills based on live data feeds, I created an Alexa Skill which announces unplanned service changes of the New York City subway and bus lines, based on information provided by the Metropolitan Transportation Authority (MTA). This skill, available in English and German, was now certified and has gone live.
Today a short blog post about a Visual Studio Code extension I created a week ago. VSCode, as you might know, is a very popular code editor created and maintained by Microsoft and available for Windows, Linux, and macOS. This extension implements a Paste Special function to paste clipboard content in different available formats.
Yesterday I tried to create a Progressive Web App displaying an artificial horizon over a live camera view and was wondering if this would be possible with a modern mobile web browser. During the research, I stumbled over several websites which you can use to test the hardware capabilities and their software support in web browsers and I wanted to share some links.
This is a 3D visualization of real-time earthquake data gathered from the U.S. Geological Survey website. The data used in this example covers all earthquakes with a magnitude of at least 1 within the last 30 days. They are drawn into a template texture image file of the Earth’s surface according to the geographical position and the magnitude of the quake.
An easy way to change labels and strings in WordPress is to use a gettext filter. This post shows the different filter functions, their purpose, and how to implement a filter callback in the file functions.php to change labels and strings in themes, plugins, and widgets using a table of string replacements, even for different languages.