PHP cannot be opened as open source

php is open source. PHP is a server scripting language mainly used for web server development, command line and writing desktop applications. Since the source code of the PHP interpreter is public, websites with higher security factors can change the PHP interpreter themselves; in addition, the use of the PHP operating environment is also free.

The operating environment of this tutorial: windows7 system, PHP8 version, DELL G3 computer

PHP (Hypertext Preprocessor) is "Hypertext "Preprocessor" is a scripting language that is executed on the server side, especially suitable for web development and can be embedded in HTML. PHP syntax utilizes C, Java, and Perl. The main goal of the language is to allow web developers to quickly write dynamic web pages.

PHP script programs are mainly used for web server development, command line and writing desktop applications. PHP supports WDDX complex data exchange between all web development languages. Regarding inter-connections, PHP already supports on-the-fly connections to Java objects and can transparently use them as PHP objects.

Main features of PHP

1. Open source and free nature

Since the source code of the PHP interpreter is public, it is safe Higher websites can change the PHP interpreter themselves. In addition, the use of the PHP runtime environment is also free.

2. Quickness

PHP is a language that is very easy to learn and use. Its grammatical features are similar to C language, but it does not have the complex address operations of C language, and The object-oriented concept is added, and it has concise syntax rules, making it very simple to operate and edit, and very practical.

3. Strong scalability

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.

4. Extensibility of database connections

PHP can establish connections with many mainstream databases, such as MySQL, ODBC, Oracle, etc. PHP uses different compiled functions to establish connections with these databases. Connected, PHPLIB is a commonly used base library provided for general transactions.

5. Use process-oriented and object-oriented together

In the use of PHP language, you can use process-oriented and object-oriented respectively, and you can mix PHP process-oriented and object-oriented together. This is something that many other programming languages cannot do.

[Recommended learning: "PHP Video Tutorial"]

The above is the detailed content of PHP cannot be opened as open source. For more information, please follow other related articles on the PHP Chinese website!