If you install Chamilo 1.11.6, for example, and dive into the details of its configuration, you might get confused by the fact that we have a “settings_current” table in the database at the same time as we have a (large) number of settings to be enabled through the app/config/configuration.php file. This boils down to one […]
If you use Chamilo and decided to develop your own template, you might be faced with an issue while upgrading from Chamilo 1.11.2 (or below) to 1.11.4 (or above). The issue will usually be reflected by either of these: a white page an error message about Twig if you have xdebug installed and showing error […]
As a web developer configuring SSL certificates on websites you deliver, as we do, you might be faced, one day, with a small issue about configuring a 301 redirect from HTTP to HTTPS that has to be reverted. It so happens that browsers *really* take it to heart to cache an HTTP 301 (permanent redirect) […]
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 that there is no real difference I could find in the data returned, it is […]
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 comments section of this article: http://getluky.net/2010/12/14/301-redirects-cannot-be-undon/ (look for Dominick’s first comment).
If you have to maintain an open source project written in PHP, like we do with Chamilo at BeezNest, you’ll have to test your software on multiple versions of PHP to make sure of how well your code is supported on these versions. Of course, being open source, you can publish it on Github and […]
This command mentionned by Pete Doherty, found on in the comments of this article http://gitready.com/intermediate/2009/03/04/pick-out-individual-commits.html, is simply awesome: git log –graph –pretty=format':%C(yellow)%h%Cblue%d%Creset %s %C(white) %an, %ar%Creset’ It will show something like this (in the terminal)
dirname(__FILE__) and __DIR__ give exactly the same result in PHP, although one (__DIR__) is evaluated at compile-time, while the other (dirname(__FILE__)) has at least part of it (the function) evaluated at execution time. Ever wondered what the difference is, in terms of efficiency, between the two? I’ve written a *very* simple script to try it […]
Did you ever develop some nice code, then simply wanted to check if a string was only composed of white spaces or tabs, and used something like this: if (!empty(trim($string))) { … } …only to get a bad error appear (only on your PHP 5.4 server) in the middle of your app, like this?: Fatal […]
As we migrate to gettext for Chamilo LMS v10, we are also looking for a platform to host our translation system (considering our current translation system does not support gettext). We will migrate most existing translations, but we were looking for the right platform to manage the translations as a community. One tool that attracted […]
This article is an extension of the previous article about storing sessions in Memcached with PHP. Using Memcached for sessions storage is generally a matter of speed (storing them in memory is faster than on disk) and of scalability (using a Memcached server allows you to have several web servers serving the same PHP application […]
If you’re in a hurry/on speed, know this: this procedure is slightly more difficult (so longer) than installing the charm on Amazon you can skip directly to “Installing Juju” if you already have juju installed, you can skip to the last 2 lines of the “Installing juju” section if you already have juju-docean installed and […]
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