tomcat php difference: 1. Tomcat is a core project in the Jakarta project of the Apache Software Foundation, while PHP is just a general open source scripting language; 2. Tomcat server is a free open source Web Application server, while PHP is a scripting language executed on the server side.
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Tomcat
Tomcat is a core project in the Jakarta project of the Apache Software Foundation and is jointly developed by Apache, Sun and other companies and individuals. Due to Sun's participation and support, the latest Servlet and JSP specifications can always be reflected in Tomcat. Tomcat 5 supports the latest Servlet 2.4 and JSP 2.0 specifications. Because Tomcat has advanced technology, stable performance, and is free, it is deeply loved by Java enthusiasts and recognized by some software developers, making it a popular Web application server.
Tomcat server is a free open source Web application server. It is a lightweight application server. It is commonly used in small and medium-sized systems and situations where there are not many concurrent access users. It is used to develop and debug JSP programs. first choice. For a beginner, you can think of it this way: when the Apache server is configured on a machine, it can be used to respond to access requests for HTML (an application under the Standard Universal Markup Language) page. In fact, Tomcat is an extension of the Apache server, but it runs independently when running, 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 pages and Tomcat actually runs the JSP pages and Servlets. In addition, Tomcat, like Web servers such as IIS, has the function of processing HTML pages. In addition, it is also a Servlet and JSP container. An independent Servlet container is the default mode of Tomcat. However, Tomcat's ability to handle static HTML is not as good as the Apache server. The latest version of Tomcat is currently 9.0.37.
PHP
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.
Main features
(1) Open source and free nature
Since the source code of the PHP interpreter is public, websites with higher security factors can change it themselves PHP interpreter. 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.
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