Skip to main content

How does CMS Create Dynamic Pages II

This is the continuation of the last post How does CMS Create Dynamic Pages.

If you run the script given on that post (save it with the name “cms.php”), you’d see a site like below:

An Example of How Content Managment System Create Pages Dynamically

As you can see, it’s a simple five page site of which all of the five pages are available (only 3 are shown in the image though).

Isn’t it amazing for just one PHP script to create a five page site!

If you look at the code and try to understand, you see that the script is designed to show the Homepage when no data is passed. It creates different pages from the data in the arrays when the respective page is asked for, by passing p=0 to p=4 to the script.

We can create 10, 20, 100 or even a 1000 page site like this just from one script. In fact most CMS do that.

Do remember however that the array storing the content was just to depict the database and real sites would store content in database.

Did you notice the line $page=$_GET[‘p’];
As you know we have two methods of sending and receiving data “get” and “post”. The question is why we are using “get” method here.

Answer is, its necessary, as “get” method sends data via the URL and we need to put links to those URLs on the page. Read An Example of User Authentication System in PHP II for more information.

Look at these lines:

   <a href="cms.php?p=0">Hello world</a>
   <a href="cms.php?p=1">How does it look</a>
   <a href="cms.php?p=2">PHP is great</a>
   <a href="cms.php?p=3">Content Management System</a>
   <a href="cms.php?p=4">CMS work this way!</a>

All links are sending data (p=0 to p=4) via “get” method. If we use “post” method all URLs would be the same (cms.php) and since normal links like this cannot send any data via “post” method, all the links would point to the same page, which of course we don’t want.

Also, peoples bookmark pages from a site and pages created via “post” method CANNOT be bookmarked.

This should have cleared any doubts you had regarding the use of “get” method in that script.

That’s all we’ve for this post, do check back for updates.

Related Articles:

Popular posts from this blog

Fix For Toshiba Satellite "RTC Battery is Low" Error (with Pictures)

RTC Battery is Low Error on a Toshiba Satellite laptop "RTC Battery is Low..." An error message flashing while you try to boot your laptop is enough to panic many people. But worry not! "RTC Battery" stands for Real-Time Clock battery which almost all laptops and PCs have on their motherboard to power the clock and sometimes to also keep the CMOS settings from getting erased while the system is switched off.  It is not uncommon for these batteries to last for years before requiring a replacement as the clock consumes very less power. And contrary to what some people tell you - they are not rechargeable or getting charged while your computer or laptop is running. In this article, we'll learn everything about RTC batteries and how to fix the error on your Toshiba Satellite laptop. What is an RTC Battery? RTC or CMOS batteries are small coin-shaped lithium batteries with a 3-volts output. Most laptops use

The Best Way(s) to Comment out PHP/HTML Code

PHP supports various styles of comments. Please check the following example: <?php // Single line comment code (); # Single line Comment code2 (); /* Multi Line comment code(); The code inside doesn't run */ // /* This doesn NOT start a multi-line comment block /* Multi line comment block The following line still ends the multi-line comment block //*/ The " # " comment style, though, is rarely used. Do note, in the example, that anything (even a multi-block comment /* ) after a " // " or " # " is a comment, and /* */ around any single-line comment overrides it. This information will come in handy when we learn about some neat tricks next. Comment out PHP Code Blocks Check the following code <?php //* Toggle line if ( 1 ) {      // } else {      // } //*/ //* Toggle line if ( 2 ) {      // } else {      // } //*/ Now see how easy it is to toggle a part of PHP code by just removing or adding a single " / " from th

How to Create an HTML Form Linked with MySQL Database in PHP

If you're looking for example code and detailed discussion on how to create an HTML form that stores data in a MySQL database using PHP then this post might be what you're looking for. I assume that you're familiar with basic HTML, CSS, PHP coding, and  MySQL. I am going to divide this small project into two parts: The HTML form itself that takes input from the user and the PHP script that saves it into the database A table that displays the user-added data that has been saved in the database. We'll be dealing with the first part in this tutorial. Again I'd like to break this problem into a few parts so that it's easier for you to understand and probably gives you an insight into how breaking up a problem into smaller chunks can help make things clearer in your mind. Let's think about it, there is an HTML form (that is HTML code), then there is the PHP code that deals with the user-input data, and the MySQL database itself. For this tutorial, we'll b