Introduction to PHP

Nowadays, php is used almost in the design of every website. But what is basically php? How it is used? These are the questions which comes to your mind. So let me solve your problem by providing you lessons on daily basis and you can ask about any type of query which comes to your mind. So let us start with today's lesson : Introduction to php (i.e from where it is originated,whats the use of php etc.).
PHP(recursive acronym for PHP:Hypertext Preprocessor):

• widely used open source general purpose scripting language.
• originally designed for web development to produce dynamic web-pages.
• For this purpose, php code is embedded to html code and interpreted by a web server with a PHP processor module,which generates web page.
• Creator of PHP: Rasmus Lerdorf
• License: free software created under PHP license.

Important terms:

• Open Source Software: A computer software whose source code and certain other rights are available to users i.e. users can study,change and improve the software. e.g. PHP, Linux: computer Operating System, Apache: a web server, Firefox: a web browser etc.
• Scripting Language: A scripting language is a form of programming language that is usually interpreted rather than compiled.e.g. VBScript, Smalltalk, Ruby etc.
• Dynamic webpage: a kind of web-page which changes with time,user, the user interaction, the context etc. to maintain the page up-to-date.e.g News sites, search sites etc.
• PHP-License: php is absolutely free as free software and incompatible with GNU General Public License.