DMIT-Overview of WordPress

What are the functions of the principal components?

Linux

The Linux operating system provides the platform for secure and reliable operation of the web server. Access to the file system is governed by file permissions and enforced by the operating system. The operating system also provides interfaces to the networks and enforces process and user security.

Apache

When a user requests a page or content from the web server, Apache receives the HTTP Request and interprets the contents. For example, Apache will determine whether a file extension has been supplies as part of the Request. If so it will determine whether the requested resource is a static items, e.g. a simple web page stored as an HTML file, or whether the requested item relates to an application, e.g. a PHP file. Depending on the complexity of the requested item, Apache may be required to locate and respond with a number of resources, e.g. the basic HTML file, CSS files, Javascript, images and other media like MP3 audio files of SWF video files. Apache determines where to locate the content based on the path specified in the HTTP Request and the file paths identified in the HTML content.

PHP

Increasingly users expect to be provided wuth dynamic content, which may be influenced by time, current events, the user’s location or personalisation. With these more complex websites, static HTML pages are largely replaced by applications. One of the most popular scripting languages is PHP and there are a wide range of applications available including content management systems (CMS) like Joomla!, forums, bulletin boards, shopping carts, etc.

For a dynamic site, the Apache web server is configured to recognise when a script needs to be run, this may be through a combination of file extensions and default settings. For example, if a website’s home page is requested and the server has PHP installed, Apache will seek an index.php file in the root directory if there is no index.html file in the website root directory. It is this mechanism which is used to initialise applications like Joomla! The PHP scripts will be used to store and retrieve information and to render the HTML page layouts for transmission back to the user’s browser by the Apache web server.

MySQL

Typically a PHP website will also use a MySQL database to store content and configuration information. It is possibel to build sites where the contents are storeed in flat text files, but the use of relational databses like MySQL gives greater flexibility. The interaction between the Apache webserver and the MySQL database is handled by PHP.


Singapore Poly Website


Reflection

1.Explain why user could not see your blog at Task B?

The blog has not been published yet

2.Explain the difference among Save as a draft, preview and publish.

Save as a draft means that you will save your work and progress and continue your work at a later date. Preview means you will see how your blog looks like to the public users. Publish means to officially post your blog for the public to see.

3.What is the URL to your post?

https://p1637074.wordpress.com/2016/05/16/overview-of-wordpress/

4.Referring to the figure below, Where is your Post stored?

My Post is being stored in “My SQL

5.What is the HTML syntax for hyperlink? List three properties for hyperlink.

The HTML syntax for hyperlink is <a href=”example.com”>.

  • Target: Gets or sets the target window or frame in which to display the Web page content linked to when theHyperLink control is clicked.
  • Target Name: Gets or sets the name of a target window or frame for the Hyperlink.
  • Command:  Gets or sets a command to associate with the hyperlink.

 

 

 

Sources:

Giphy,2015. Neil Patrick Harris Animated GIF [photograph]. Available from: http://giphy.com/gifs/taking-back-sunday-john-nolan-straylight-run-6XFmhISI66Mp2 [Accessed 25 May 2016]

Microsoft, Hyper Link Properties, 2016 [online]. Available from: https://msdn.microsoft.com/en-us/library/system.windows.documents.hyperlink_properties(v=vs.110).aspx [Accessed 25 May 2016]

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