Chart of execution time between dirname(__FILE__) and __DIR__ in PHP, showing 4 to 10 times efficiency improvement using __DIR__
dirname(__FILE__) vs __DIR__, which is faster?

If you’re developing PHP software today but studied PHP based on old-ish manuals or manuals written by people who did, you might find a mix of calls to dirname(__FILE__) and __DIR__ and wonder what the difference is… Past the fact…

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Raspberry Pi 3 Model B picture
Chamilo 1.11 on Raspberry Pi 3 for off-the-grid situations

This article can be considered an update of our first article on installing Chamilo (on a Raspberry Pi B+). This time, we are testing it with Raspberry 3, as of the 1st of April 2017 (no joke intended). Last time,…

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How to properly rename a projet in Redmine

Redmine is a project management system and a support ticket management system. See other articles on this blog and my video on YouTube about a previous version of Redmine for more info. At some point (and this only happened to…

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Change the URL of a Chamilo portal copy

There is a surprising number of cases where you’d want to change the URL of a Chamilo portal, but the more common we see is when you take a backup copy of a portal and want to use that copy…

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Upgrade Chamilo 1.9 to 1.11 through Git

If you are a developer or system administrator and you (wisely) manage some Chamilo portals through Git, you might want to upgrade, at some point, from Chamilo 1.9(.x) to Chamilo 1.11(.x). This is a complex process, for many reasons, so…

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Avoiding the eternal effect of an HTTP 301 permanent redirect

This article should be extended soon, but in the meantime, we thought this article Mark S. Kolich couldn’t be missed if you’re having issues with HTTP 301 permanent redirect configurations. http://mark.koli.ch/set-cache-control-and-expires-headers-on-a-redirect-with-mod-rewrite An interesting discussion was also going on in the…

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Ergonomics: The luxury quality of a good LMS

Ergonomics and usability with Chamilo LMS. Sometimes Open Source software gets criticized for lacking behind proprietary software when talking about compelling interfaces. Many people in our community, after spending years with other solutions, describe our software, Chamilo LMS, as the…

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Odoo apps licensing

If you ever want to implement projects with Odoo and, like us, you are a bit itchy about non-free-software licenses and alternative BSD or LGPL-like licenses, you might want to know this. Odoo itself was previously (as OpenERP) AGPL, but…

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Quick install guide for Chamilo 1.10 on Digital Ocean

This guide will take you through the process of installing Chamilo 1.10.2 (from Github packages) for testing on a fresh Digital Ocean instance. A previous article on this blog explains how to install Chamilo 1.9 using Juju Charms. To follow…

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Change SVG icons to grayscale with Inkscape

If you design your icons in SVG with Inkscape and wonder how to quickly make an “inactive” icon in grayscale, here’s a quick fix (at least for Linux users): inkscape -f teacher_na.svg –verb EditSelectAll –verb org.inkscape.color.desaturate.noprefs –verb FileSave –verb FileQuit…

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