What is PHP?

PHP Tutorial: Introduction of PHP Programming Language.
Written by Paayi Tech |23-Feb-2020 | 0 Comments | 183 Views

There are thousands of reasons to write web programming in PHP. PHP is a web development language that is derived from (PHP: Hypertext Preprocessor) and the original name is (Personal Home Page). PHP is a server-side programming language that can be embedded in HTML such as ASP. 

However, it is not similar to HTML. If you are familiar with HTML, then you know that it is not a programming language, rather it is a rendering language that has an excellent use for the insertion of images in web pages, weblinks, text, tables, etc. However, it is not possible in HTML to add two numbers or build a connection with the database.

PHP is an engine behind many dynamic web applications. The difference between the dynamic web pages and static web pages is that dynamic web pages’ structure and contents kept on changing due to backend programming. However, static web pages’ content and structure remain fixed until the designer or developer decides to change by itself. PHP supports almost every type of database such as MS-SQL, Mysql, PostgreSQL, SQLite, Access and Oracle. 


Important Note: PHP code always executes on the server-side. PHP is a very popular language for creating dynamic websites and it's free to use and download.

PHP Syntax

echo “Paayi is a best eLearning platform”;





     Paayi is the best eLearning platform


History of PHP

PHP’s first version was introduced by Rasmus Lerdorf in 1994 who developed it for his personal use which is a set of Micros (CGI wrapper), which he used to find about the users who visited his website. In the same year, he proposed a new package under the name of Personal Home Page Tools. He made upgradations, added form interpreter package to it and called it as PHP/FI, which is endorsed by many PHP users.

Then version 2 of PHP was introduced which consisted of SQL Queries Parsing support. In the middle of 1997, approximately 50 thousand websites developed which were written in PHP language. Two software programmers Andi Gutmans and Zeev Suraski from Israel developed PHP versions 3 and 4 of Parsers. They made advancements in PHP and gave it the name of Zend, which stands for Zeev and Andi.

In 1998, PHP was running on approximately 100 thousand unique Domains, within one year it crosses 1 million users and in the year 2000 it reaches more than 2 million and in 2004 the number of the user reaches 17 million. Currently, on the internet, many famous websites which include imdb.com, Sade.com, Facebook.com, Harvard.com and many more are developed in PHP language. 


What is MYSQL?

MYSQL is a fast Relational Database Management System (RDBMS) which can be used to store almost any kind of data and who’s services are totally free to be used by anyone. Whereas The database facilities to store, search or to produce data, MYSQL server is also capable of controlling many users and also provides quick access to data at any given time by maintaining high-quality security. It allows only authorized users access.

MYSQL is a multiuser, multi-threaded database server. It works on SQL Structured Query Language, which is being used as a standard database language for all data manipulations. MYSQL is available from 1996 for common use; however, it was first introduced in 1979. This is one of the world's most popular databases available.


Why use PHP and MYSQL?

Let us assume that you would like to develop an E-Commerce website and in this, you may use the following aspects. 

For example: 

  • Hardware for webserver

  • Operating System

  • Web Server Software

  • Database management System

  • Programming Language

  • Notepad or any other program editor

There are some limitations to the things mentioned above such as not every operating system supports every hardware; neither all scripts can be connected to all databases. The best thing about PHP and MYSQL is that both work on all leading operating systems in the market. You can easily run PHP on Apache, Linux or PWS, IIS and Windows operating system.


What’s So great about PHP?

Great Performance:

PHP is a complete packaged and loaded with functionalities ready to use as a server-side language. It has the capability of providing thousands of users with the most excellent services even on cheap servers or systems.


Connectivity with different Database Systems:

PHP support plenty of database systems as few of them are as follows

  • Mysql

  • MySQL

  • PostgreSQL

  • SQLite

  • MS Access

  • Oracle

 PHP5 and later has a built-in SQL interface for flat files, which is called SQLite.


Use of Built-in Libraries in PHP:

Since PHP language was developed as server-side and for web-based solutions due to this reason it contains many useful functionalities, Such as Images can be generated in seconds, web and network services can be provided, Cookies or PDF files can also be generated in a few seconds with only a few lines of code.

PHP is Cheaper:

PHP is free of cost programming language.


Easy to Learn and Use:

PHP syntax is very similar to other high-level computer languages, for example, C++, JAVA or Perl. If you are familiar with any of these languages then for you it is a lot easier to learn and use PHP for developing your own projects.


PHP Is Widely Used:

PHP is adopted by more than 200 million various websites, from many little home pages to giants like Facebook, Slack, Wikipedia, Tumblr, and Yahoo. There are plenty of books, magazines, and websites dedicated to teaching PHP and explore possibilities of working with it.


Object-Oriented Support:

From PHP 5 and later versions have entire object-oriented features included in it. 


Availability of Sources:

If you are thinking of changing PHP language or introducing some new concepts. You can download its source code from php.net for free and can use it as per your will.


Availability of Support:

Zend Technologies is the company behind the development of the PHP engine, it is also providing PHP full support and related software. In short, if you are a user of PHP, You are not alone!

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