PHP Introduction


PHP is a strong server scripting language for creating dynamic and interactive Web sites.

PHP is a popular, open-source, and cost-effective alternative to rivals such as Microsoft's ASP.

The server is running the PHPcode.

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What You Should Already Know

Before proceeding, you must have a good understanding of the following topics:

  • HTML
  • CSS
  • JavaScript

If you want to study these subjects first, find the tutorials on our Home page.

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What is PHP?

  • PHP stands for "PHP: Hypertext Preprocessor".
  • PHP is a scripting language that is extensively used and open source.
  • On the server, PHP programs are performed.
  • PHP is a free and open source scripting language.
  • PHP is a wonderful and well-known scripting language!

It is strong enough to be at the heart of the web's largest blogging system (WordPress)!

It has enough depth to perform the world's largest social network (Facebook)!

It is very easy to learn the first server-side language for beginners.

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What is a PHP File?

  • Text, HTML, CSS, JavaScript, and PHP code can all be included in PHP files.
  • The server executes PHP code, which is delivered to the browser as simple HTML.
  • PHP files are denoted by the extension ".php".
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What Can PHP Do?

  • PHP is capable of producing dynamic content for web pages.
  • On the server, PHP has the ability to open, read, write, remove, and close files.
  • PHP can gather data from html forms.
  • PHP may transmit and accept cookies.
  • PHP has the ability to add, remove, and alter data in your database.
  • User access may be controlled with PHP

You are not confined to producing HTML using PHP. Images, PDF files, and even Flash videos may be exported. Any text, including XHTML and XML, can be produced.

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Why PHP?

  • PHP is available on a number of different operating systems (Windows, Linux, Unix, Mac OS X, etc.).
  • PHP runs on practically all of today's servers (Apache, IIS, etc.).
  • PHP is compatible with a variety number of databases.
  • PHP is a free open-source scripting language. Download it from www.php.net, the official PHP site.
  • PHP is simple to understand and executes quickly on the server-side.
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What's new in PHP 7?

  • PHP 7 is considerably quicker than the least popular version of stability (PHP 5.6).
  • Error Handling in PHP 7 has been enhanced.
  • PHP 7 allows for more stringent restrictions. Argument type declarations.
  • New operators (such as the spaceship operator:=>) are supported in PHP 7.
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PHP Installation

What Do I Need?

To start using PHP, you can:

  • Locate a web host that supports PHP and MySQL.
  • Find a web host supported by PHP and MySQL Setup a Web Server and install PHP and MySQL on your own PC.
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Use a Web Host With PHP Support

There is no need to change anything if your server has PHP support enabled.

Just make some .php files, store them in your web directory, and your server parses them automatically.

Nothing or additional tools need to be compiled or installed.

Most web hosting supports PHP since it is free.

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Set Up PHP on Your Own PC

But if your server doesn't support PHP, you must:

  • configure a web server.
  • configure PHP.
  • Setup a database, like MySQL.

The official PHP website (PHP.net) has installation instructions for PHP: http://php.net/manual/en/install.php .

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