What should I do if the browser only displays the code when writing PHP?

The browser only displays the code when writing PHP. Solution: 1. Check the file extension; 2. Make sure PHP is installed on the server; 3. Check whether the PHP code is correct; 4. Confirm that the PHP file is in the correct location; 5. Check file permissions; 6. Restart the server; 7. Enable PHP error reporting.

The operating environment of this tutorial: windows10 system, php8.1.3 version, DELL G3 computer.

PHP is a server-side scripting language used to develop dynamic web pages and applications. When we run PHP code in the browser, the desired result is to display the processed web page content, not the code itself. However, sometimes only the PHP code is visible in the browser and not the correct output. This situation can be caused by several common reasons, and this article will discuss how to solve the problem.

1. Check the file extension

PHP files have a .php extension. If the file extension is incorrect or missing, the server will not be able to parse the PHP code correctly. Ensuring that your PHP code files have the correct extension is the first step to solving the problem.

2. Make sure PHP is installed on the server

PHP is a server-side scripting language, so a PHP server needs to be installed and configured to run PHP code correctly. Make sure that PHP is installed on your server and that the relevant server software, such as Apache or Nginx, has been configured correctly.

3. Check whether the PHP code is correct

If there are syntax errors or other errors in the PHP code, the server will not be able to execute the code correctly. Only the code showing up in the browser may be due to a bug in the PHP code itself. It is recommended to use a text editor to check and fix any syntax errors in the code.

4. Make sure the PHP file is in the correct location

Make sure the PHP code file is in a location that the server can access. File paths and folder permissions may prevent the server from parsing PHP code properly.

5. Check file permissions

If your PHP code file does not have the correct file permissions, the server cannot process the file. Make sure the PHP file has the appropriate read and execute permissions so the server can execute the PHP code correctly.

6. Restart the server

If you modify the server configuration or file permissions, sometimes you need to restart the server for the changes to take effect. Try restarting your server and check if the correct PHP output is displayed.

7. Enable PHP error reporting

During the development and debugging phases, enabling PHP error reporting is very helpful. Enable error reporting by adding the following code to your PHP code:

ini_set('display_errors',1);
ini_set('display_startup_errors',1);
error_reporting(E_ALL);

This way you will be able to see any PHP error messages that may be present, making it easier to troubleshoot issues.

Summary:

When only PHP code is displayed in the browser instead of the correct output, it may be due to incorrect file extension, PHP is not installed on the server, This can be caused by errors in the PHP code, files in the wrong location, file permission issues, server configuration not being updated, or error reporting not being enabled. The key to properly resolving this issue is to troubleshoot the possible causes and address them one by one. By carefully checking and fixing these issues, you will be able to display PHP output correctly in your browser.

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