how to check php version codeigniter 3

To check the PHP version in CodeIgniter 3, you can follow these steps:

1. Open your CodeIgniter project folder in a text editor or IDE.
2. In the project root directory, locate the index.php file.
3. Open the index.php file.
4. Look for the following line of code in the file:

define('CI_VERSION', 'x.x.x');

1. The value assigned to CI_VERSION represents the CodeIgniter version, not the PHP version. To obtain the PHP version, you can add the following code just after the define('CI_VERSION', 'x.x.x'); line:

echo phpversion();

1. Save the index.php file.
2. Now, if you access your CodeIgniter application in a web browser, you should see the PHP version displayed on the page.

By following these steps, you can check the PHP version in CodeIgniter 3.