Linux Tactic

3 Easy Ways to Check Your PHP Version for Better Website Performance

Are you a developer wondering how to check your PHP version? Whether you’re working on a new web application, updating an existing one, or concerned about security, knowing your PHP version is important.

Luckily, there are two simple ways to check your PHP version: by using the phpinfo() function and by using the phpversion() function. In this article, we’ll explain each method in detail so you can determine which one is best for you and your project.

Checking PHP version with phpinfo()

The phpinfo() function

The phpinfo() function is a built-in PHP function that displays the technical details of PHP on a web server. By using this function, you can easily see your PHP version, as well as other important information about the server such as loaded modules, system environment variables, and the PHP configuration file.

To use the phpinfo() function, simply create a new PHP file and add the code below:

phpinfo();

?>

Save the file as phpinfo.php and upload it to your website’s document root directory using an FTP or SFTP client. Then, navigate to your website’s URL followed by /phpinfo.php in your web browser.

You should see a page that displays all the technical details of PHP on your web server, including the version number. Uploading the phpinfo.php file and accessing PHP version

Now that you have created the phpinfo.php file, it’s time to upload it to your website’s document root directory.

This is the directory that contains your website’s index file (usually index.html or index.php). You can use an FTP or SFTP client to upload the file to your server.

Once the file is uploaded to your server, you can access it by navigating to your website’s URL followed by /phpinfo.php. For example, if your website’s URL is example.com, you would access the phpinfo.php file by going to example.com/phpinfo.php.

This will display the phpinfo() output, including your PHP version.

Checking PHP version with phpversion()

The phpversion() function

The phpversion() function is another built-in PHP function that allows you to check the version of PHP that is currently running. Unlike the phpinfo() function, the phpversion() function only returns the version number of PHP, not other technical details about the server.

To use the phpversion() function, simply create a new PHP file and add the code below:

echo phpversion();

?>

Save the file as phpversion.php and upload it to your website’s document root directory using an FTP or SFTP client. Then, navigate to your website’s URL followed by /phpversion.php in your web browser.

The page will display your PHP version number.

Differences from phpinfo()

While both methods allow you to check the PHP version, there are some key differences between the phpinfo() and phpversion() functions. The phpinfo() function displays many technical details about the server, while the phpversion() function only displays the PHP version number.

Additionally, the phpversion() function is more secure than the phpinfo() function as it only displays the version number and not sensitive server information. If you’re concerned about security, using the phpversion() function is the safer option.

In conclusion,

Checking your PHP version is an important step for any developer. Whether you choose to use the phpinfo() function or the phpversion() function, both methods are straightforward and easy to use.

By checking your PHP version, you can ensure that your website is running on a secure and up-to-date version of PHP. Are you a developer looking to check your PHP version but don’t want to use a web browser?

Good news you can check your PHP version from the command line! By using the PHP command-line interface (CLI), you can quickly and easily determine the PHP version that is currently installed on your server. In this section, we’ll explain how you can check your PHP version from the command line by using the PHP CLI binary and the –version or -v option.

Checking PHP version from the Command Line

Using the PHP CLI binary

To check your PHP version from the command line, you’ll need SSH access to your server. Once you have accessed your server through an SSH client, you can use the PHP CLI binary to determine your PHP version.

The PHP CLI binary is a standalone program that allows you to execute PHP scripts from the command line. To use the PHP CLI binary, simply type “php” followed by the name of your PHP script in the command prompt.

Command to determine PHP version

To determine your PHP version from the command line, you can use the –version or -v option with the PHP command. Simply type “php –version” or “php -v” into the command prompt, and the PHP version that is currently installed on your server will be displayed.

For example, if your PHP version is 7.3.27, the console output will look like this:

$ php –version

PHP 7.3.27 (cli) (built: Feb 22 2021 17:12:26) ( NTS )

Copyright (c) 1997-2018 The PHP Group

Zend Engine v3.3.27, Copyright (c) 1998-2018 Zend Technologies

Conclusion

Summary of Article

In this article, we covered several methods for determining your PHP version. You can use the phpinfo() function or the phpversion() function to check your PHP version from a web browser.

The phpinfo() function gives you detailed information about your server, while the phpversion() function only displays your PHP version. Alternatively, you can check your PHP version from the command line by using the PHP CLI binary and the –version or -v option.

By determining your PHP version, you can ensure that your website runs securely and smoothly with the latest version of PHP.

Comment Section

We hope this article has been helpful in explaining the different methods for checking your PHP version. If you have any questions or comments, please leave them in the comment section below.

We would love to hear from you and help you with any PHP-related issues you may be facing. Don’t hesitate to reach out!

In conclusion, determining your PHP version is a vital step for any developer to ensure that their website runs securely and smoothly with the latest version of PHP.

There are three ways to check your PHP version: using the phpinfo() function or the phpversion() function to check it from a web browser, or by using the PHP command-line interface (CLI) binary and the –version or -v option to check it from the command line. The article emphasizes that if you have any questions or issues, don’t hesitate to reach out for help.

Keeping your PHP version up to date is crucial for website security, performance, and functionality.

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