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What's the difference between tomcat and php? Many novices are not very clear about this. In order to help you solve this problem, the following editor will explain it in detail. People with this need can come and learn. I hope you can gain something.

The difference between tomcat and php: 1. Tomcat is a core project of the Apache Software Foundation's Jakarta project, while PHP is only a general open source scripting language; 2. Tomcat server is a free and open source Web application server, while PHP is a scripting language executed on the server side.

Tomcat

Tomcat is a core project of the Jakarta project of the Apache Software Foundation (Apache Software Foundation), which is jointly developed by Apache, Sun and other companies and individuals. With the participation and support of Sun, the latest Servlet and JSP specifications are always reflected in Tomcat, and Tomcat 5 supports the latest Servlet 2.4 and JSP 2.0 specifications. Because of its advanced technology, stable performance and free, Tomcat is deeply loved by Java enthusiasts and recognized by some software developers, and has become a popular Web application server.

Tomcat server is a free and open source Web application server, which is a lightweight application server. It is widely used in small and medium-sized systems and not many concurrent access users. It is the first choice for developing and debugging JSP programs. For a beginner, it can be thought that when an Apache server is configured on a machine, it can be used to respond to requests for access to HTML (an application under the standard general markup language) pages. Tomcat is actually an extension of the Apache server, but at run time it runs independently, so when you run tomcat, it actually runs as a separate process from Apache.

The trick is that when configured correctly, Apache serves the HTML page, while Tomcat actually runs the JSP page and Servlet. In addition, like Web servers such as IIS, Tomcat has the function of dealing with HTML pages, and it is also a Servlet and JSP container, and a separate Servlet container is the default mode of Tomcat. However, Tomcat is not as capable of handling static HTML as Apache servers. Currently, the latest version of Tomcat is 9.0.37.

PHP

PHP, or "hypertext preprocessor", is a general open source scripting language. PHP is a scripting language executed on the server side, which is similar to C language and is a commonly used website programming language. PHP's unique syntax is a mix of C, Java, Perl, and PHP's own syntax. Conducive to learning, widely used, mainly suitable for the field of Web development.

Main features

(1) Open source and free of charge

Because the source code of PHP's interpreter is public, websites with higher security factors can change the interpreter of PHP themselves. In addition, the use of the PHP runtime environment is also free. [1]

(2) quickness

PHP is a language that is very easy to learn and use, its grammatical characteristics are similar to C language, but it does not have the complex address operation of C language, and it adds the concept of object-oriented, coupled with its concise grammar rules, which makes its operation and editing very simple and practical.

(3) the universality of database connections

PHP can establish connections with many mainstream databases, such as MySQL, ODBC, Oracle and so on. PHP uses different compiled functions to establish connections with these databases. PHPLIB is a commonly used base library for general affairs.

(4) process-oriented and object-oriented

In the use of PHP language, process-oriented and object-oriented can be used respectively, and PHP process-oriented and object-oriented can be mixed together, which is impossible for many other programming languages.

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