GO TO 21becioggcz9prcczcqnbw1r6m.hop.clickbank.net – Hope you like the new UBT. It was a big jump since the last version. The new version also includes “custom stylesheet” and “custom functions” so that when you update in the future, your customizations won’t be lost. It is also iPad ready and compatible to all browsers.
Tag Archives: php
WordPress Tutorial – Edit a Sidebar File Using a Text Editor
This Advanced-level WordPress tutorial shows how to download, edit and upload a WordPress theme sidebar file (sidebar.php) using FTP software and a text editor. This is considered an advanced WordPress tutorial because you work with the files for the WordPress theme. You do not use the WordPress Dashboard in this tutorial. The tutorial assumes you know how to setup and use FTP software on your computer so that you can download and upload the sidebar file. It also assumes you know how to open a text file like sidebar.php using a text editor. On a PC, common text editors are Notepad and Wordpad. On a Mac, the default text editor is TextEdit. A good Macintosh text editor for HTML and PHP files is BBEdit.
Moodle
Moodle is an open source course management system that is also parlayed as a learning management system or a virtual learning environment. In reality Moodle is a content management system writtne in PHP which has all of the functionality if many PHP online collaboration and development tools available in open source.
The Moodle platform creates a community of users that can communicate with its various levels of citizenry using email, forums, blogs, task managers, chat rooms, and online educational routines. For the educational community, Moodle offers a fully integrated platform that lets administrators and teaches communicate and manage course activities among themselves and to the students who take online courses through the Moodle network.
This platform can be used within a school or within an entire school district to manage courses and activities across multiple locations in a central location. The platforms allows members to communicate with each other using either email, forums, or chat which in turn increases productivity through mutual collaboration while extending courses to students that can be worked on independently within a classroom atmosphere.
After a few weeks of using Moodle, an open-source and therefore free VLE, it finally took over from WebCT and we all breathed a sigh of utter relief. To entirely misquote Steve Jobs, using Moodle really is like drinking a glass of ice cold water in the dark depths of Hell.
Moodle vs. Blackboard Learning Management System: An Evaluation – Moodle is the industry-leading, open source learning management system and it is gradually taking marketshare from Blackboard due to its scalability, dramatic cost savings, and robust features.
A Practical Use Of Open Source Software
This is a very interesting article that discusses the use of Open Source software and how each particular software was chosen to fulfill the needs of the company as they are starting their business.
As we started the project of our web site, we knew that the proprietary software costs would be too high for our financial resources. Our only option then was to make use of Open Source Code softwares.
However, within the Open Source Code there are lots of softwares to choose from, and its up to the system analyst/programmer to pick the ones that best suit the project goals.
In our case, we picked Linux as our operating system. However we faced a big question: Which Linux distribution ? There are dozens of linux distributions, each one with specific advantages, sometimes with or without paid services.
We chose linux Slackware because we thought that it would suit better our needs, in terms of stability and reliability. Slackware is a conservative distribution, meaning that it only offers in its distribution package kernel versions and third party libraries, once its been proved to be stable and reliable. As a result, Slackware is one the most stable Linux operating system on the market. If the user wishes the most recent Linux kernel and libraries, we recommend to look for a different distribution.
Another reason for us picking Slackware, was because of its text interface, which at the beginning may become a bit difficult, in the long run however it offers a better understanding of the Linux environment. This way most of Slackware configurations are done thru text scripts.
Once it was set the operating system, we picked Apache as our web server. Apache is one of the most popular web server in the internet. For server programming language, we chose PHP. Also, a very popular programming language. Our experience with Apache/PHP proves that this setup is very reliable, working extremely well in our production environment. For workstation programming language, we chose javascript, which besides of having a simple syntax, it offers lots of resources.
Apache web server is really a complete web server. Also, it can become very complex with many configuration setups.
For our database, we picked Postgresql. This database has been made available to the public for more than 15 years, and besides of being well debugged, it offers so many resources that it has become one of the best database options from Open Source Code softwares. Extremely reliable, Postgresql has reported cases where there have been databases in production with over 4 terabytes. Besides all of that, Postresql is not the most popular Open Source Code database. A matter of marketing ? Probably.
As for the programming language PHP, we had to use an object oriented application structure. There are many PHP application structures being offered with Open Source Code license. Object oriented application is very important, because it makes programming very easy and scalable up to the point where the system may grow without many problems. Also, it helps to keep PHP code separated from HTML, with the help of some specific libraries, such as Smarty. We make use of Smarty library and we believe that it is a very important resource, which can even make web pages faster thru the use of its cache functions.
Also a very important set of libraries worth mentioning for PHP systems, is the PEAR libraries. In PEAR web site, among the many libraries being offered, there are the database interface DB and the MAIL_QUEUE, which sends emails thru the use of database.
As we came to the end of our project, we had to use some sort of real time database replication. For that we chose the DRBD and Heartbeat libraries. The use of database replication is very important and should not be postponed. Just after 3 months our system got into production, our server hard disk became bad. Thru the use of DRBD/Heartbeat we were able to put the system back into production within seconds, without loosing any data. DRBD/Heartbeat replication is done thru the use of a lan network between the server and slave nodes.
Our project also makes use of ImageMagick (enlarge and reduce images), Iptables (firewall), Tsearch2(text search in portgresql) and Mon (linux monitoring tasks).
Also a very important library worth mentioning is the pseudo APC compiler for PHP. Speed is always a critical factor for internet sites.
Our web site is already in production and based upon our experience we can say that the Open Source Code softwares we picked, proved to be extremely reliable and stable. Open Source Code softwares can certainly be an excellent option for developing web sites.
This article is under GNU FDL license and can be distributed without any previous authorization from the author. However the authors name and all the URLs (links) mentioned in the article and biography must be kept.
Dan Ariely devotes a whole chapter to “free” in his most excellent book Predictably Irrational, and since deploying open source software is not without cost (in either time, money or both) it can be misleading.
Is All Open Source Software Really Free?
When software developers and architects select open source software over commercial alternatives, there is often a premise that because the software is free, (as in beer vs. speech) there is zero cost associated with the choice.
Reassuring End Users Of Open Source
Furthering the adoption of open source software (OSS) is often seen as a natural, contagious progression as more developers and users share with others about the success of their projects. But how can an open source project even hope to compete with proprietary commercial products with massive marketing budgets and staff?