How to Check PHP Version and Configuration on CentOS System

<h3>Method 1: Check PHP Version via Command Line</h3>
<p>The simplest way is to check the PHP version information directly via the command line. You can use the following command:</p>

<div class="code-toolbar">
    <pre class="language-php" tabindex="0"><code class="language-php">php -v

After running this command, the system will display the PHP version information, including the version number and release date. Make sure PHP is installed on your terminal and that the environment variables are correctly set to use this command.

Method 2: Create a PHP Info Page

If you want to view more detailed PHP configuration information, you can do so by creating a PHP file. Follow these steps:

Step 1: Create a PHP Info File

Create a file named phpinfo.php in the root directory of your web server, and add the following code to the file:

phpinfo();

Step 2: Access the PHP Info Page

Access the page by visiting http://your-server-ip/phpinfo.php, replacing "your-server-ip" with your server's IP address. You will see a detailed page displaying the current PHP version and related configuration, including extension information, environment variables, and more.

Method 3: Use the php.ini File

Another way to check the PHP configuration is by directly viewing the php.ini file. This file contains all PHP configuration information. You can use the following command to locate this file:

php -i | grep "Loaded Configuration File"

This command will return the full path to the php.ini file. You can open this file with a text editor to learn more about PHP configuration options.

Conclusion

Checking the PHP version and configuration on CentOS is simple. You can use the command line, create a PHP info page, or directly check the php.ini file to get the information you need. Mastering these techniques will help you better manage and optimize your PHP environment.