What does php mean?

php means hypertext preprocessor, which is a general-purpose open source scripting language. PHP is a scripting language executed on the server side. It is a commonly used website programming language. It has the advantages of being easy to use, highly implantable, and highly scalable.

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php introduction

PHP is "Hypertext Preprocessor" and is a general open source scripting language. PHP is a scripting language executed on the server side. It is similar to C language and is a commonly used website programming language. PHP's unique syntax mixes C, Java, Perl, and PHP's own syntax. It is conducive to learning and widely used. It is mainly suitable for the field of web development.

php features:

(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 syntax features are similar to C language, but it does not have the complex address operations of C language. Moreover, the concept of object-oriented is added, and it has concise grammatical rules, making it very simple to operate and edit, and very practical.

(3) 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 For connection purposes, PHPLIB is a commonly used base library provided for general transactions.

(4) 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. , which is something that many other programming languages ​​cannot do.

Advantages:

(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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