Knowledgebase

PHP (Hypertext Preprocessor) is a widely used open-source scripting language that is especially suited for web development. It's embedded into HTML, and it's integral to the functioning of websites that rely on content management systems like WordPress, Joomla, or Drupal. PHP versions evolve, with each new version offering enhanced performance, security, and features.

Knowing which PHP version your website is running is crucial for several reasons:

1. Security: Older PHP versions may have vulnerabilities that can be exploited by hackers. Keeping your PHP version up to date is vital for maintaining a secure website.
2. Compatibility: Some scripts, plugins, and themes may only work with certain versions of PHP. Knowing your PHP version ensures compatibility and prevents site crashes.
3. Performance: Newer PHP versions are typically faster and more efficient. Upgrading to the latest version can significantly boost your website's performance.

Why Use an Online Tool to Check PHP Version?

There are several ways to check your website's PHP version, including using command-line interfaces, accessing the website's control panel, or even creating a custom PHP file. However, not everyone is comfortable with these methods, especially beginners or those without technical knowledge. This is where online tools come into play.

Online tools offer a simple, user-friendly way to check your website's PHP version without requiring access to the server or deep technical knowledge. Here are some advantages of using online tools:

• Ease of Use: Online tools are typically straightforward and require minimal input, making them accessible to everyone.
• Quick Access: You can check the PHP version of any website from anywhere, without needing to log into your server or control panel.
• No Technical Expertise Needed: Most online tools are designed to be user-friendly, meaning you don’t need to be a developer to use them.

Step-by-Step Guide to Checking PHP Version Using Online Tools

Now, let’s walk through the process of checking the PHP version of a website using some popular online tools. We'll cover several tools, explain how they work, and provide step-by-step instructions.

1. Using PHP Version Checker by Site24x7

Site24x7 offers a straightforward PHP version checker that allows you to easily find out the PHP version running on any website.

Step-by-Step Instructions:

1. Visit the Site24x7 PHP Version Checker: Open your web browser and navigate to the Site24x7 PHP Version Checker tool.
2. Enter the Website URL: In the provided field, enter the URL of the website whose PHP version you want to check.
3. Click on "Check Now": After entering the URL, click on the "Check Now" button.
4. View the Results: The tool will analyze the website and display the PHP version being used.

This tool is especially useful for website owners who need quick information without logging into their hosting account or using FTP.

2. Using BuiltWith Technology Profiler

BuiltWith is a powerful online tool that provides detailed information about a website’s technologies, including its PHP version.

Step-by-Step Instructions:

1. Access BuiltWith: Open your browser and go to the BuiltWith website.
2. Enter the Website URL: Type the URL of the website you want to check into the search bar.
3. Click on "Lookup": Hit the "Lookup" button to analyze the website.
4. Navigate to the Server Information Section: Scroll down to find the section where the PHP version is listed along with other server details.

BuiltWith provides not just the PHP version but also other useful information about the website’s technology stack, making it a comprehensive tool for web developers and analysts.

3. Using WhatRuns Extension for Browsers

WhatRuns is a browser extension that allows you to see the technologies used by a website, including the PHP version, directly in your browser.

Step-by-Step Instructions:

1. Install the WhatRuns Extension: Add the WhatRuns extension to your browser (available for Chrome and Firefox).
2. Visit the Website: Navigate to the website you want to check.
3. Click on the WhatRuns Icon: Once on the website, click on the WhatRuns icon in your browser's toolbar.
4. View the PHP Version: The extension will display a list of technologies used by the website, including the PHP version.

This tool is particularly handy for developers and SEO professionals who frequently need to analyze websites on the fly.

4. Using Wappalyzer Browser Extension

Wappalyzer is another popular browser extension that can detect the PHP version of a website.

Step-by-Step Instructions:

1. Install Wappalyzer: Add Wappalyzer to your browser.
2. Navigate to the Website: Go to the website you want to analyze.
3. Click on the Wappalyzer Icon: Click on the Wappalyzer icon in the browser's toolbar to view the technologies used by the site.
4. Check PHP Version: Look through the list for the PHP version.

Wappalyzer is known for its accuracy and ease of use, making it a go-to tool for many web professionals.

Pros and Cons of Using Online Tools to Check PHP Version

While online tools are convenient and easy to use, they also have their drawbacks. Let’s explore the pros and cons.

Pros:

• Convenience: Online tools can be used from any device with internet access, without needing to log into the server.
• Speed: These tools provide quick results, often in just a few clicks.
• No Installation Required: Unlike some other methods, online tools typically don’t require any software installation or setup.

Cons:

• Accuracy: Some online tools may not always detect the correct PHP version, especially if the website uses caching or a Content Delivery Network (CDN).
• Limited Information: While online tools provide the PHP version, they may not give you deeper insights into your server's configuration or other important details.
• Privacy Concerns: Using online tools means submitting your website URL to a third-party service, which may raise privacy concerns for some users.

Other Methods to Check PHP Version

For those who prefer more direct methods or need additional details beyond what online tools provide, there are alternative ways to check the PHP version of a website.

1. Using a PHP Info File

One of the most reliable methods to check your PHP version is to create a PHP info file.

Step-by-Step Instructions:

1. Create a PHP File: Create a new file named phpinfo.php.
2. Add PHP Code: Open the file and add the following line of code:
   php

    

   <?php phpinfo(); ?>
3. Upload the File to Your Server: Use an FTP client or your hosting control panel to upload the phpinfo.php file to your website's root directory.
4. Access the File in Your Browser: Navigate to http://yourwebsite.com/phpinfo.php in your browser.
5. View the PHP Version: The PHP version will be displayed at the top of the page.

2. Checking PHP Version via Command Line

For those with SSH access to their server, the PHP version can be checked via the command line.

Step-by-Step Instructions:

1. Connect to Your Server via SSH: Use an SSH client like PuTTY to connect to your server.
2. Enter the Command: Type the following command and press Enter:
   bash

    

   php -v
3. View the Output: The terminal will display the PHP version currently installed on your server.

3. Using cPanel

If your hosting provider offers cPanel, checking the PHP version is straightforward.

Step-by-Step Instructions:

1. Log into cPanel: Access your cPanel account.
2. Navigate to Software Section: Look for the "Software" section and click on "Select PHP Version."
3. View the Current PHP Version: The current PHP version will be displayed on the next screen.

Best Practices for Managing PHP Versions

Understanding your PHP version is just the first step. Properly managing and updating your PHP version is crucial for maintaining a secure and efficient website.

1. Keep PHP Updated

Always aim to run the latest stable version of PHP. Regularly check for updates and plan upgrades during low-traffic periods to minimize disruptions.

2. Test Compatibility Before Upgrading

Before upgrading your PHP version, test your website on a staging environment. This ensures that all your plugins, themes, and custom code are compatible with the new version.

3. Backup Your Website

Always create a full backup of your website before making any major changes, including PHP version upgrades. This allows you to restore your website if anything goes wrong.

4. Monitor Website Performance

After upgrading your PHP version, monitor your website's performance closely. Look out for any errors or slowdowns that might indicate compatibility issues.

Checking the PHP version of a website is a crucial task for maintaining its security, performance, and compatibility. Online tools provide a quick and easy way to accomplish this, especially for those who may not be comfortable using more technical methods.