PHP Courses Online

About

PHP is a scripting language designed to fill the gap between SSI (Server Side Includes) and Perl, intended for the Web environment. Its principal application is the implementation of Web pages having dynamic content. PHP has gained quite a following in recent times, and it is one of the frontrunners in the Open Source software movement. Its popularity derives from its C-like syntax, and its simplicity. The newest version of PHP is 7.0 and it is heavily recommended to always use the newest version for better security, performance and of course features.

If you've been to a website that prompts you to login, you've probably encountered a server-side scripting language. Due to its market saturation, this means you've probably come across PHP. PHP is even used to run sites such as Wikibooks. PHP was designed by Rasmus Lerdorf to display his resume online and to collect data from his visitors.

Basically, PHP allows a static webpage to become dynamic. “PHP" is an acronym that stands for "PHP: Hypertext Preprocessor". The word "Preprocessor" means that PHP makes changes before the HTML page is created. This enables developers to create powerful applications that can publish a blog, remotely control hardware, or run a powerful website such as Facebook or Wikipedia. Of course, to accomplish something such as this, you need a database application such as MySQL.

Content

• Setup and Installation
  • Installation on Windows
  • Installation on Linux
  • Installation on Mac OS X
• Uses of PHP
• Beginning with "Hello World!" 
• Nuts and Bolts 
• Commenting and Style 
• Comparison operators 
• Arrays 
• Control structures
  1. The if Structure 
  2. The switch Structure 
  3. The while Loop 
  4. The do while Loop 
  5. The for Loop 
  6. The foreach Loop 
• Functions 
• Files 
• Mailing 
• Cookies 
• Sessions 
• Databases
  1. MySQL 
     • php and mySQL
  2. PostgreSQL 
  3. PHP Data Objects 
  4. Neo4j
• Integration Methods (HTML Forms, etc.) 
• Regular expressions

About

A cache is a collection of duplicate data, where the original data is expensive to fetch or compute (usually in terms of access time) relative to the cache. In PHP, caching is used to minimize page generation time. PHP basically has two main types of caching: 'output caching' and 'parser caching'. PHP 'output caching' saves a chunk of data somewhere that can later be read by another script faster than it can generate it. 'Parser caching' is specific feature. PHP is a scripting language and code is not compiled or optimized to a particular computer. Every PHP file must be parsed and that takes time. This type of time minimization is 'parser caching'.

Content

• Parser caching
  • Include caching
  • Array caching
  • Session caching
  • Shared variables
• Output Caching

About

MySQL is the most popular database used with PHP. PHP with MySQL is a powerful combination showing the real power of Server-Side scripting. PHP has a wide range of MySQL functions available with the help of a separate module. In PHP5, this module has been removed and must be downloaded separately.  MySQL allows users to create tables, where data can be stored much more efficiently than the way data is stored in arrays.

In order to use MySQL or databases in general effectively, you need to understand SQL or Structured Query Language.

Content

• Introduction
• How to - Step By Step
  • Connecting to the MySQL server
  • Running a Query
  • Putting it all together
  • The Create Database Query
  • The Create Table Query
  • Getting Select Query Information with older connector construct
  • Inserting the records with latest connector construct
  • Updating the records with latest connector construct
  • Delete the records
• PHP + MySQL + Sphinx

About

The PHP Data Objects extension is currently included by default with installations of PHP 5.1. It is available for users of PHP 5.0 through PECL, but does not ship with the base package.

PDO uses features of PHP that were originally introduced in PHP 5.0. It is therefore not available for users of PHP 4.x and below.

PHP Data Objects has a number of significant differences to the MySQL interface used by most PHP applications on PHP 4.x and below:

• Object-orientation. While the MySQL extension used a number of function calls that operated on a connection handle and result handles, the PDO extension has an object-oriented interface.

• Database independence. The PDO extension, unlike the MySQL extension, is designed to be compatible with multiple databases with little effort on the part of the user, provided standard SQL is used in all queries.

• Connections to the database are made with a Data Source Name, or DSN. A DSN is a string that contains all the information necessary to connect to a database, such as 'MySQL:dbname=test_dB'.

Content

• How do I get it?
• Differences between PDO and the MySQL extension
• PHP Data Objects usage example

About

Sessions allow the PHP script to store data on the web server that can be later used, even between requests to different PHP pages. Every session has a different identifier, which is sent to the client's browser as a cookie or as a $_GET variable. Sessions end when the user closes the browser, or when the web server deletes the session information, or when the programmer explicitly destroys the session. In PHP, it's usually called PHPSESSID. Sessions are very useful to protect the data that the user wouldn't be able to read or write, especially when the PHP developer doesn't want to give out information in the cookies as they are easily readable. Sessions can be controlled by the $_SESSION superglobal. Data stored in this array is persistent throughout the session. It is a simple array. Sessions are much easier to use than cookies, which helps PHP developers a lot. Mostly, sessions are used for user logins, shopping carts and other additions needed to keep browsing smooth. PHP script can easily control the session's cookie which is being sent and control the whole session data. Sessions are always stored in a unique filename, either in a temporary folder or in a specific folder, if a script instructs to do so.

Content

• Using Sessions
  • Session Configuration Options
  • Ending a Session
  • Using Session Data of Other Types
• Avoiding Session Fixation