PHP language

Tue, 2019-01-22 00:18

the PHP Languge:

The PHP Hypertext Preprocessor (PHP) is a programming language that allows web developers to create dynamic content that interacts with databases. PHP is basically used for developing web based software applications. This tutorial helps you to build your base with PHP.

PHP started out as a small open source project that evolved as more and more people found out how useful it was. Rasmus Lerdorf unleashed the first version of PHP way back in 1994.

  • PHP is a recursive acronym for "PHP: Hypertext Preprocessor".

  • PHP is a server side scripting language that is embedded in HTML. It is used to manage dynamic content, databases, session tracking, even build entire e-commerce sites.

  • It is integrated with a number of popular databases, including MySQL, PostgreSQL, Oracle, Sybase, Informix, and Microsoft SQL Server.

  • PHP is pleasingly zippy in its execution, especially when compiled as an Apache module on the Unix side. The MySQL server, once started, executes even very complex queries with huge result sets in record-setting time.

  • PHP supports a large number of major protocols such as POP3, IMAP, and LDAP. PHP4 added support for Java and distributed object architectures (COM and CORBA), making n-tier development a possibility for the first time.

  • PHP is forgiving: PHP language tries to be as forgiving as possible.

  • PHP Syntax is C-Like.

Common uses of PHP

  • PHP performs system functions, i.e. from files on a system it can create, open, read, write, and close them.

  • PHP can handle forms, i.e. gather data from files, save data to a file, through email you can send data, return data to the user.

  • You add, delete, modify elements within your database through PHP.

  • Access cookies variables and set cookies.

  • Using PHP, you can restrict users to access some pages of your website.

  • It can encrypt data.

Characteristics of PHP

Five important characteristics make PHP's practical nature possible −

  • Simplicity
  • Efficiency
  • Security
  • Flexibility
  • Familiarity
PHP - Environment Setup

In order to develop and run PHP Web pages three vital components need to be installed on your computer system.

  • Web Server

    − PHP will work with virtually all Web Server software, including Microsoft's Internet Information Server (IIS) but then most often used is freely available Apache Server. Download Apache for free here − https://httpd.apache.org/download.cgi

  • Database

    − PHP will work with virtually all database software, including Oracle and Sybase but most commonly used is freely available MySQL database. Download MySQL for free here − https://www.mysql.com/downloads/

  • PHP Parser

    − In order to process PHP script instructions a parser must be installed to generate HTML output that can be sent to the Web Browser. This tutorial will guide you how to install PHP parser on your computer.

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