PHP Basic Programming Vol 1: Identifying Source Code Running or Execution Mechanisms
Hello friends. Maybe many of us are already familiar with what a programming language is and in particular what is the PHP programming language. this time we will start a discussion about the basics of PHP programming. let’s go straight to the first discussion
PHP programming language
PHP belongs to a group of programming languages called scripting languages. Script programming languages do not require a special work environment to run. In general, it can be embedded into the code of another programming language. A PHP file can contain the php code itself, or it can even add HTML, CSS, or JavaScript code.
PHP: Hypertext Preprocessor is a scripting language that can be embedded or embedded into HTML. PHP is a server-side scripting language, a programming language used to develop static websites or dynamic websites or Web applications. Because php is server-side scripting, this type of programming language will later be run/processed by the server. In contrast to HTML which is processed on the client-side. Server-side programming is a type of programming language in which the script/program will be executed/processed by the server.
Source Code Execution Mechanism
Execution / running PHP source code is a process to run a program so that it displays a web page. The PHP file to be run must be in the C:\xampp\htdocs folder. PHP file names must be without spaces and should be lowercase or you can use an underscore (_) instead of a space.
Tools for Executing PHP Source Code
- Text Editor: Text Editor is used to writing PHP scripts
- Web Server (Xampp / Wampp): Web Server is used to run the Apache module which functions to read PHP files, it is recommended to use xampp
- Web Browser (Chrome / Mozilla): The web browser is used as a medium to run and display PHP programs, it is recommended to use the Chrome browser
PHP Source Code Execution Mechanism
- The web server sees the file extensions accessed. If the file has a .php extension, the web server will run the PHP module and execute the PHP code contained in the file.
- The web server processes the .php file from the first line to the last line sequentially. If the webserver does not find the <?php tag, the code will be treated as HTML code. When the webserver finds the <?php tag, the code will be treated as PHP code until the webserver finds the closing ?> tag.
The function of the extension is so that the server can identify PHP files and scripts. PHP files must be saved with the “.php” extension.
Conclusion
We have come to a conclusion. The conclusion from our discussion is that PHP is a scripting programming language, PHP is also executed on the server-side, then the tools for executing PHP are text editors, web servers, web browsers. We will continue our discussion of Basic PHP in the next article. I hope this article can be useful.
Thank you.
