Is php open source?
php is open source. Open source means that its source code is open.
PHP is a general-purpose open source scripting language. The syntax absorbs the characteristics of C language, Java and Perl, which is easy to learn and widely used. It is mainly suitable for the field of Web development. PHP's unique syntax mixes C, Java, Perl, and PHP's own syntax.
It can execute dynamic web pages faster than CGI or Perl. Compared with other programming languages, dynamic pages made with PHP embed programs into HTML (an application under the Standard Universal Markup Language) document for execution, and the execution efficiency is much higher than CGI that completely generates HTML tags; PHP can also execute compiled code. Compilation can achieve encryption and optimize code running, making the code run faster.
Advantages of php
(1) Popular and easy to use
PHP is currently the most popular programming language, there is no doubt about it. It drives more than 200 million websites around the world, and more than 81.7% of the world's public websites use PHP on the server side. PHP's commonly used data structures are all built-in. It is convenient and simple to use, not complicated at all, and its expression ability is quite flexible.
(2) There are many development positions
In server-side website programming, PHP will more easily help you find a job. Many Internet-related companies are using the PHP development framework, so it can be said that the market demand for PHP development programmers is still relatively large.
(3) Still developing
PHP is constantly compatible with technologies such as closures and namespaces, while taking into account performance and currently popular frameworks. After version 7, it has been providing higher performance applications.
(4) Strong implantability
During the patch vulnerability upgrade process of PHP language, the core part of the PHP language is easy to implement and fast to implant.
(5) Strong scalability
During the database application process, the PHP language can retrieve various types of data from the database and has high execution efficiency.
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