PHP - Introduction |
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Monalisa Parker
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March 06, 2009, 04:32:27 AM
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PHP is a scripting language originally designed for producing dynamic web pages. It has evolved to include a command line interface capability and can be used in standalone graphical applications.
While PHP was originally created by Rasmus Lerdorf in 1995, the main implementation of PHP is now produced by The PHP Group and serves as the de facto standard for PHP as there is no formal specification.
PHP is a widely-used general-purpose scripting language that is especially suited for web development and can be embedded into HTML. It generally runs on a web server, taking PHP code as its input and creating web pages as output. It can be deployed on most web servers and on almost every operating system and platform free of charge. PHP is installed on more than 20 million websites and 1 million web servers.PHP originally stood for Personal Home Page. It began in 1994 as a set of Common Gateway Interface binaries written in the C programming language by the Danish/Greenlandic programmer Rasmus Lerdorf. Lerdorf initially created these Personal Home Page Tools to replace a small set of Perl scripts he had been using to maintain his personal homepage. The tools were used to perform tasks such as displaying his résumé and recording how much traffic his page was receiving. He combined these binaries with his Form Interpreter to create PHP/FI, which had more functionality. PHP/FI included a larger implementation for the C programming language and could communicate with databases, enabling the building of simple, dynamic web applications. Lerdorf released PHP publicly on June 8, 1995 to accelerate bug location and improve the code.
Hosting PHP applications on a server requires a careful and constant attention to deal with these security risks. There are advanced protection patches such as Suhosin and Hardening-Patch, especially designed for web hosting environments. Installing PHP as a CGI binary rather than as an Apache module is the preferred method for added security.
PHP only parses code within its delimiters. Anything outside its delimiters is sent directly to the output and is not parsed by PHP. The most common delimiters are <?php and ?>, which are open and close delimiters respectively. <script language="php"> and </script> delimiters are also available. PHP includes free and open source libraries with the core build. PHP is a fundamentally Internet-aware system with modules built in for accessing FTP servers, many database servers, embedded SQL libraries such as embedded PostgreSQL, MySQL and SQLite, LDAP servers, and others. Many functions familiar to C programmers such as those in the stdio family are available in the standard PHP build. PHP has traditionally used features such as "magic_quotes_gpc" and "magic_quotes_runtime" which attempt to escape apostrophes (') and quotes (") in strings in the assumption that they will be used in databases, to prevent SQL injection attacks. This leads to confusion over which data is escaped and which is not, and to problems when data is not in fact used as input to a database and when the escaping used is not completely correct.
« Last Edit: August 25, 2011, 07:08:54 PM by Admin »
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March 07, 2009, 01:23:25 PM
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good info...always nice to know a bit of history about the language
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March 09, 2009, 10:49:12 AM
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Be careful - I have a feeling magic quotes have been removed from the latest version of PHP
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Jennifer Linn
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March 10, 2009, 12:42:27 AM
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PHP is a powerful server-side scripting language for creating dynamic and interactive websites. It is the widely-used, free, and efficient alternative to competitors such as Microsoft's ASP. PHP is perfectly suited for Web development and can be embedded directly into the HTML code.
It's syntax is very similar to Perl and C and often used together with Apache (web server) on various operating systems. It also supports ISAPI and can be used with Microsoft's IIS on Windows.
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May 03, 2011, 05:36:52 PM
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PHP is a server side scripting language that can be used on a host of web servers and platforms. It has become the base for abounding web applications, allows simple admittance in HTML cipher and connection to MySQL and PgSQL Databases.
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May 07, 2011, 01:54:47 AM
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There are two kind of scripting languages, Which are given below.
- Server side scripting language
- Client side scripting language
PHP is a Server side scripting language. I would like to use PHP rather then other programming languages. You can create very nice dynamic pages with the very less efforts .
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May 08, 2011, 06:17:57 PM
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PHP is a scripting language that was designed originally for the production of featured dynamic web pages. PHP has since evolved to include a command line interface ability that can be used in a standalone graphical application dynamic.
Facts about PHP
PHP was designed and developed by a man named Rasmus Lerdorf in 1995, however, since then, control of the implementation and script maintenance is now conducted by a PHP Group, a sort of cyber governing body on PHP scripting.
If you are a programmer. Glad to recommend two good site where list some free php scripts, such as *** link removed ***
« Last Edit: May 31, 2011, 11:16:36 PM by Admin »
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Life Is Good!
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May 18, 2011, 05:37:19 AM
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nice piece of information.. thanks for sharing..!
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May 23, 2011, 04:59:16 PM
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PHP is a server side scripting language in general written in a context of HTML. It is not sent directly to a client of the servant, parsed by the binary PHP or module that is installed in the servant. The elements of the writing of HTML are left alone, but the PHP code is interpreted and executed.
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May 31, 2011, 12:27:13 AM
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Thanks for the info  Very informative
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June 03, 2011, 02:23:21 AM
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PHP is a general-purpose scripting language originally designed for web development to produce dynamic web pages. For this purpose, PHP code is embedded into the HTML source document and interpreted by a web server with a PHP processor module, which generates the web page document. It also has evolved to include a command-line interface capability and can be used in standalone graphical applications.
[2] PHP can be deployed on most web servers and as a standalone interpreter, on almost every operating system and platform free of charge.
[3] A competitor to Microsoft's Active Server Pages (ASP) server-side script engine[4] and similar languages......
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Reputation Power: 6
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June 09, 2011, 11:43:47 PM
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Is the PHP coding mixed with CSS coding?
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April 19, 2012, 01:21:57 AM
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PHP is an open source server side scripting language that is used for designing dynamic web pages. it is easy to learn.
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