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In this article, the editor introduces in detail "what are the advantages and application fields of PHP". The content is detailed, the steps are clear, and the details are handled properly. I hope that this article "what are the advantages and application fields of PHP" can help you solve your doubts.

PHP, which means "hypertext preprocessor" in Chinese, is a cross-platform, open source, server-side scripting language, which is mainly suitable for Web development. The advantages of PHP: 1, low learning cost; 2, easy to use; 3, good database support; 4, support object-oriented; 5, high development efficiency; 6, cross-platform; 7, rich biosphere, etc.

Operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

PHP, whose full name is PHP Hypertext Preprocessor, means "hypertext preprocessor". It is a cross-platform, open source, server-side scripting language, its syntax absorbs the characteristics of C language, Java and Perl, is conducive to learning, widely used, and is mainly suitable for the field of Web development.

PHP is one of the most popular Web development languages. It is favored by Web developers for its simple learning, fast development and stable performance. It not only has a large number of users, but also has strong community support, which makes it very fast to develop Web applications with PHP or to learn the PHP language.

PHP is a language born in the network, used in the network and developed in the network. It was branded with free development as soon as it was born. At present, the websites of tens of thousands of individuals and organizations at home and abroad are learning, developing and improving it in various forms and languages, and constantly publish the latest applications and research results.

Advantages of PHP language

Here are some advantages of the PHP language.

1. Low learning cost

PHP has the advantages of fast learning, low development cost, relatively simple syntax, and provides rich class libraries, such as GD library for image processing, various encryption extensions (such as OpenSSL and Mcrypt), etc., and many libraries are installed in the PHP environment by default, which can be easily used directly.

2. Easy to use

PHP can build a system easily and quickly by combining Linux, Nginx or Apache, MySQL. PHP also supports calling system commands directly, so you can complete many operations with code, such as packaging and compression, copy and paste, renaming, performing grep query filtering in Linux, and so on.

Nginx is a very excellent Web server software. It can receive client requests and send PHP files to PHP programs for execution. PHP in Nginx runs scripts in the form of fastCGI.

3. Good database support

PHP supports the use of MySQL, MSSQL, SQLite and other databases, among which the combination of PHP and MySQL is the most popular.

Take MySQL as an example. PHP provides 3 ways to connect to MySQL databases:

MySQL extensions: no longer supported in PHP 5.5 and later.

MySQLi extension: PHP offers a more secure and efficient extension specifically for linking to MySQL, and provides some more advanced operations that fully support object orientation.

PDO extension: PHP launched a unified solution for linking MySQL and other types of databases, which is highly portable and can be used to flexibly and easily switch between different types of databases without changing more code.

4. Support object-oriented

Object-oriented programming (OOP) is the current trend of software development. PHP provides good support for OOP. The idea of OOP can be used for advanced programming of PHP, which is of great significance for improving PHP programming ability and planning Web development architecture.

5. High development efficiency

Because PHP is a scripting language for interpretation and execution, it can be executed immediately after writing a program, unlike C, Java, C++ and other compiled languages that need to be compiled and executed, which makes the development of PHP more efficient.

6. Cross-platform

PHP can run under Unix, Linux, Windows, Mac OS and other systems, which can well meet the different needs of website development and construction.

7. Rich biosphere

As one of the most popular and widely used Web development languages, PHP has a rich ecological circle and has many famous open source frameworks and open source systems to use.

Excellent PHP open source framework:

Official open source frameworks include Zend Framework, CakePHP, Yaf, Symfony, etc.

Third-party open source frameworks include ThinkPHP, Laravel, Yii, and so on.

Excellent PHP open source system:

Open source blog (Blog) systems include WordPress, Z-Blog, emlog, etc.

Open source content management systems (CMS) include DedeCMS (Dream Weaving CMS), PHPCMS, EmpireCMS (Imperial CMS)

Open source forum systems (BBS) include Discuz, PHPwind, StartBBS, etc.

Open source social networking systems (SNS) include UCHome, ThinkSNS, etc.

Open source mall system Ecshop, ShopEx and so on.

Based on these excellent open source frameworks and systems, we can easily and quickly build a set of Web sites.

8. Excellent scalability

Because PHP itself is developed by C language, in some cases with strict performance requirements, we can also use C language to write PHP extensions to improve the execution speed of the program.

After we use PHP to complete the coding of the main business, we use C language to complete the performance improvement requirements, which can not only ensure the efficiency of software development, but also take into account the efficiency of execution.

In this case of extreme pursuit of software development speed and program execution performance, if it is other languages, you may be at a loss or start all over again.

9. Many users

Many large domestic companies, such as Baidu, Taobao, 360and so on, have widely used PHP as the development language, which has achieved great success in practice, and there are many successful experiences for reference.

The application field of PHP

1) WEB server

PHP is particularly suitable for website development, and there is no language to compete with it (according to the authoritative technology website w3techs.com, PHP is used by 79% of websites).

Of course, the opportunity for PHP to show its talents is not only in website development, but also in game development, advertising system development, API interface development, mobile background development, and internal OA system development.

Nowadays, Wechat development is extremely popular, and PHP is also the best development tool. Coupled with the birth of react native framework and Hybrid App, PHP programmers can develop mobile App.

2) Command line script

We can also run PHP scripts in command-line mode, which does not require server support or browser trigger, but only PHP parsers in command-line script mode. This method is usually used for daily running scripts on Windows and Linux platforms, such as some daemons. Of course, these scripts can also be used to handle simple text.

3) write desktop applications

PHP may not be the best language for developing desktop applications with a graphical interface, but if users are very proficient in PHP and want to use some of PHP's advanced features in client applications, they can use PHP-GTK to write these programs.

PHP-GTK is an extension of PHP, using PHP-GTK to create stand-alone GUI (graphical user interface) applications, such as mp3 players, text editors, database backend, and so on. You can download PHP-GTK from http://gtk.php.net/.

After reading this, the article "what are the advantages and application fields of PHP" has been introduced. If you want to master the knowledge points of this article, you still need to practice and use it yourself to understand it. If you want to know more about related articles, welcome to follow the industry information channel.

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