Security

PHP

Implementing Two-Factor Authentication

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.
2021-01-30T18:15:54-05:00September 11, 2020|Browser, HTML5, PHP, Web Design|

A 3D visualization of real-time earthquake data

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.
2020-04-17T17:49:51-04:00June 7, 2019|3D, Earth, PHP, Science, Web Design, WebGL|

Changing labels in WordPress with the gettext filter

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.
2020-04-17T17:49:51-04:00March 22, 2019|GDPR, PHP, Web Design, WordPress|
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