Is php a web page file?

PHP is a very popular WEB programming language, hypertext preprocessing language, others include ASP, JSP, etc. Simply put, .PHP is a dynamic web page file embedded in this language.

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. (Recommended learning: PHP video tutorial)

Compared with other programming languages, PHP embeds programs into HTML (a standard universal markup language). Application) document, the execution efficiency is much higher than CGI that completely generates HTML tags; PHP can also execute compiled code, and compilation can achieve encryption and optimization of code operation, making the code run faster.

Main features

(1) Open source and free nature

Because the source code of the PHP interpreter is public , so websites with higher security factors can change the PHP interpreter by 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 there is no C language. The language has complex address operations, and it also incorporates object-oriented concepts. In addition, it has concise grammatical rules, making it very simple to operate and edit, and highly practical. [1]

(3) Extensibility of database connections

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

(4) Use process-oriented and object-oriented together

In the use of PHP language, you can use process-oriented and object-oriented respectively, and PHP can be process-oriented and object-oriented. Object-oriented and object-oriented can be used together, which is something that many other programming languages ​​cannot do.

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