Web Development Using PHP

Introduction:

PHP stands for Hypertext Preprocessor, formerly known as Personal Home Page, is widely used, general-purpose scripting language that was originally designed for web development, for producing dynamic web pages. This is a terrific language for rapid development of dynamic websites. That's a term has been used, the "scripting language", is a programming language that allows control of one or more software applications. "Scripts" are distinct from the core code of application.It can be embedded in HTML (Hyper Text Markup Language) and usually runs on a web server, can be deployed on most web servers and operating systems or platforms of almost all free.

PHP was originally created by Rasmus Lerdorf in 1995 and has been in continuous development since then.

Features / Why need / d 'use:

PHP is very popular web development language, which is very common at all hours a day. The characteristics are as follows ...

PHP is a scripting language that is especially suited for Web development. PHP generally runs on a web server.

Can also be used to command line and scripting client-side GUI (Graphical User Interface) applications.

Can be used with many RDBMS (Relational Database Management System).

Free of license restrictions imposed by most commercial products.

Basically PHP is Open Source Software.

Everyone is free to attend.

Originally it was designed to create dynamic web pages.

PHP is now mainly focused on server-side scripting.

PHP is a loosely-typed language, which also increases its practicality. For example, there is no need to explicitly create, typecast, or destroy a variable, even if it is not prevented from doing so.

Create and manipulate Macromedia Flash, image, and Portable Document Format (PDF)

Assess ability to guess a password and compare it to language dictionaries, and breaks easily models

Communicating with the Lightweight Directory Access Protocol (LDAP)

It also analyzes the most complex of strings using both the POSIX and Perl-based libraries of regular expressions

Authenticate users against login credentials stored in flat files, databases and even Microsoft's Active Directory

Communicate with a wide range of protocols, including IMAP, POP3, NNTP, and DNS, among other

Communicate with a wide range of credit card processing solutions.

PHP developers are rarely bound to any single implementation solution.

PHP string powerful analysis capabilities is another indication of the possibilities offered to users.

PHP is a weakly typed language, ie, a variable has different values ​​depending on the context in which it is evaluated. open development process and audit.

The recurring theme is that PHP allows you to capitalize quickly on your skill set current with a little time investment.

PHP has also attracted the development of structures that provide many blocks and design structure to promote rapid application development (RAD).

PHP is commonly used as P in this bundle alongside Linux, Apache and MySQL, which is basically known as the LAMP architecture.

Safety:

PHP provides a lot of security to develop a web site than any other scripting languages. These are as follows ..

The NVD (National Vulnerability Database) stores all the vulnerabilities in computer software.

Most of these PHP-related vulnerabilities can be exploited remotely.

Hosting PHP applications on a server requires attention and continuous action to address these security risks.

PHP web development to provide shelter from the lack of input validation.

It can also provide some function for which the cookie is more secure password.

Speed ​​optimization:

As with any interpreted language, PHP scripts are stored as readable source code and are compiled on-the-fly by the PHP engine.

To speed up the execution time and not have to compile the PHP source code-every time you access the Web, PHP scripts can also be stored in binary format using PHP compilers.

Optimization of code designed to reduce the run-time compiled code by reducing its size and making other changes that can reduce the execution time with the aim of improving performance.

Another approach for reducing overhead for high load PHP servers is using an opcode cache.

PHP is way faster than any other scripting language servers .......