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I want to know how to create a language like PHP. How does the server know how to translate a PHP file? How does it work? I want to do this for educational purposes. A simple language with basic features like echo, etc.
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PHP is a server side scripting language that is embedded in HTML. It is used to manage dynamic content, databases, session tracking, even build entire e-commerce sites. It is integrated with a number of popular databases, including MySQL, PostgreSQL, Oracle, Sybase, Informix, and Microsoft SQL Server.
PHP is an open-source server-side scripting language that many devs use for web development. It is also a general-purpose language that you can use to make lots of projects, including Graphical User Interfaces (GUIs).
PHP as it's known today is actually the successor to a product named PHP/FI. Created in 1994 by Rasmus Lerdorf, the very first incarnation of PHP was a simple set of Common Gateway Interface (CGI) binaries written in the C programming language.
You can just take a subset of an existing language or come up with a simple variation of it and get started. However, if you have plans for creating your very own programming language, you will have to give it some thought. I think of designing a programming language as divided two phases: The big-picture phase.
In basics, when webserver get's request to process php file it translating this request to php processor, it could be a module (like php.so in apache) or service (like php-cgi). Service or module compiles php script to machine code, executes it and gives the server the result of his job. You can download php source code from http://php.net. Source code include parser, thanslator, compiler and other components needed to execute php script as machine code
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