Schedule

Schedule

Thursday, March 26

1427389200 TWiT Live Specials

Friday, March 27

1427475600 Tech News Today
1427479200 This Week in Law
1427490000 Before You Buy
1427497200 Tech News 2Night
1427500800 Padre's Corner

Saturday, March 28

1427565600 The Tech Guy
1427576400 iPad Today

Sunday, March 29

1427652000 The Tech Guy
1427666400 This Week in Tech

Monday, March 30

1427734800 Tech News Today
1427738400 Triangulation
1427743800 iPad Today
1427751000 Coding 101
1427756400 Tech News 2Night

Tuesday, March 31

1427821200 Tech News Today
1427824800 MacBreak Weekly
1427833800 Security Now
1427842800 Tech News 2Night
1427846400 All About Android

Wednesday, April 1

1427902200 FLOSS Weekly
1427907600 Tech News Today
1427911200 Windows Weekly
1427918400 This Week in Google
1427929200 Tech News 2Night
1427931000 Android App Arena
1427936400 Ham Nation

Thursday, April 2

1427994000 Tech News Today
1427997600 Know How...
1428003000 Marketing Mavericks
1428008400 Home Theater Geeks
1428015600 Tech News 2Night
1428017400 The Giz Wiz

Friday, April 3

1428080400 Tech News Today
1428084000 This Week in Law
1428094800 Before You Buy
1428102000 Tech News 2Night
1428105600 Padre's Corner

Saturday, April 4

1428170400 The Tech Guy

Sunday, April 5

1428256800 The Tech Guy
1428271200 This Week in Tech

Most Recent Episodes

This Week in Computer Hardware

Silverstone Fortress FT05 case, Dell XPS 13 review, and Corsair Dominator memory kits.

The Giz Wiz

Condiments for pets, mini tennis ball launcher, Goatee Saver, and more.

Home Theater Geeks

Composer Richard Einhorn, MTI's Kevin Manbeck, and restoring "The Passion of Joan of Arc."

Tech News 2Night

Twitter releases Periscope!

Know How...

We use NAT "Network Address Translation" to segment a network.

Marketing Mavericks

Ground transportation, targeting millennials, and more.

TWiT Live Specials
Episode #243: F8: Day 2 March 26th, 2015

Facebook Developer Conference 2015: Virtual Reality

Tech News Today

Facebook F8 announcements, FTC rules against jerk.com, and more.

Ham Nation

Randy(K7AGE) talks about the basics of antenna analyzers.

Tech News 2Night

Facebook releases the Messenger Platform

Coding 101 25

Perl: Creating Dynamic Web Pages

July 10 2014

Hosts: Fr. Robert Ballecer, SJ and Shannon Morse

Guest: Patrick Delahanty

The Code for today's show is availible at our: Github

Ivory Tower

Dynamic Web Pages
* When we think of the most basic of web pages, we think of a static .html file.

Example:

Hello World!

** This web page is simple, easy to create, and easy to upload... but because it's static, it's also not all that useful unless you WANT to display nothing but static text, graphics and rich media **

What we want is a way to DYNAMICALLY GENERATE the code of a web page so that we can do things like:
* Change the layout and template of the page without having to manually re-write the code
* Change the content contained within the page automatically
* Customize the content presented by a particular device depending on the device being used to view the content and the user consuming the content.
** In other words... the world of the Internet we use most often today is Dynamically Generated.

There are two methods to dynamically generate content: "Server Side" and "Client Side"

Client Side Dynamic Web Page:
* The browser processes the page using scripting AS it loads the HTML or XHTML document
* Usually, client-side scripts can be seen if one uses the "View Code" option on most browsers (The script is embedded within the HTML or XHTML document)
* Ocassionally a web designer will put the script into a seperate file that is referenced by the HTML file (The browser will interpret the page and see the reference, at which time the server will send the file with the script.)

Popular Client-Side Scripting Languages:
-- JavaScript (Including Ajax)
-- ActionScript (Most often used with Adobe Flash Player)
-- Dart
-- VBScript
-- Typescript

Server Side Dynamic Web Page:
* As one may guess, unlike a Client-Side Dynamically Generated Web Page - which is intepreted by the browser as it loads the document, a "Server-Side" page is interpreted and generated by the SERVER, and the finished document is sent to the browser.

Popular Serveri-Side Scripting Languages:
-- PHP
-- ASP .NET
-- Perl
-- Python
-- Ruby
-- Java
-- ColdFusion
-- JavaScript (Server Side)
* Usually, Server Side scripts CANNOT be seen by simply viewing a document's code.

There are advantages and disadvantages to both techniques.
* Client-Side gets a bad wrap for insecurity, but it's not INHERENTLY insecure... usually it's just sloppy scripting code... BUT while many will allow server-side scripts to run beyond the browser, that is usually not the case with client-side scripting.
* Server-Side scripting gives a more consistent look because the page is being interpreted by the server, rather than each individual (and often different) browser
* Client-Side scripting is usually MUCH easier to start using since there is no software that need to be installed on the server to make them run. (The script is interpreted in the Browser)
* Client-Side is dependent on the client machine: A bad browser or slow computer will affect the ability ot render the page.
In modern design, we use both!

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