check php version of site

Most WordPress site owners, even those with some technical experience, often overlook the simple task of checking their site's PHP version. But we shouldn't underestimate the importance of this foundational software. Running an outdated PHP version doesn't just cause compatibility warnings but can lead to serious security vulnerabilities and poor site performance.

How to Check Your WordPress Site's PHP Version

Knowing your current PHP version is the first step toward a healthier website. It's a straightforward process, and you have several reliable methods to choose from, depending on your comfort level with your hosting dashboard or WordPress admin area. Here’s a clear guide to help you find this key piece of information quickly.

• Check via Your Hosting Control Panel: This is the most direct method. Log into your web hosting account (like cPanel, Plesk, or a custom dashboard). Look for a section labeled "PHP Version," "PHP Selector," "Software," or "Server Information." Your hosting provider will display the currently active PHP version here, and often let you change it.
• Use a WordPress Plugin: For a simple check from within WordPress, install a lightweight plugin like "Display PHP Version." Once activated, it will show the version on your WordPress admin dashboard or in the "At a Glance" widget. Remember to deactivate and delete the plugin after checking to keep your site clean.
• Check via the Site Health Tool: WordPress includes a powerful built-in tool. Go to Tools > Site Health in your admin menu, then click on the "Info" tab. Scroll down to the "Server" section, and you'll see your current PHP version listed alongside other server details like MySQL version.
• Create a Simple PHP Info File: For a detailed report, create a new text file on your computer, name it info.php, and add only this line: <?php phpinfo(); ?>. Upload this file to the root directory of your website (the same folder containing your wp-config.php file) using an FTP client or your host's file manager. Then, visit yoursite.com/info.php in your browser. You'll see a comprehensive page of data—find the "PHP Version" at the top. Crucially, delete this info.php file immediately after checking to avoid exposing sensitive server information.

Why is it important to check my PHP version regularly?

Regularly checking your PHP version is a core part of website maintenance. Newer PHP versions offer significant speed improvements, meaning your pages load faster for visitors. They also include critical security patches that protect your site from known exploits that older, unsupported versions are vulnerable to.

Furthermore, WordPress core, themes, and plugins often require a minimum PHP version to function correctly and receive updates. If you're planning a major site update or moving your website to a new hosting provider, verifying the PHP environment is an essential first step. Staying updated ensures compatibility and access to the latest features.

What happens if my PHP version is too old?

Running an unsupported PHP version exposes your site to multiple risks. The most immediate is security; without security updates, your site becomes an easy target for hackers. You might also see increased errors, broken functionality, or even a "white screen of death" as plugins and themes stop working with the outdated code.

Your site will also perform poorly, leading to slow loading times and a bad experience for users. Search engines like Google factor site speed into rankings, so an old PHP version can indirectly hurt your SEO. It's a foundational issue that can affect everything from your site's modern decoupled architecture to its basic day-to-day operations.

How do I update my PHP version for WordPress?

Updating PHP is usually done through your web hosting control panel. Before you start, it's crucially important to create a full backup of your website. This gives you a safe restore point if anything goes wrong. Also, check that your WordPress version, theme, and all plugins are updated to their latest versions, as they are more likely to be compatible with newer PHP.

Once you're prepared, log into your hosting dashboard, find the PHP settings area (often called "PHP Version," "Selector," or "Configurations"), and choose a newer, supported version from the list—WordPress currently recommends PHP 7.4 or higher. After changing the version, visit your site immediately to check for any errors. If you encounter a critical issue, like accidentally losing content after a theme update, you can revert to the old PHP version in your host's panel while you troubleshoot.

What is the recommended PHP version for WordPress?

WordPress officially recommends using PHP 7.4 or greater. However, for the best performance and security, using the latest stable release (like PHP 8.1 or 8.2) is ideal, as long as your themes and plugins support it. Always check the requirements of your specific set of plugins before making a jump to a very new version.

Can I check the PHP version without admin access?

Yes, you can check without WordPress admin access by using the PHP info file method described earlier, if you have FTP or file manager access to your hosting account. Simply create and upload the info.php file. This is also a useful trick if you've lost admin access and need to reset your WordPress password via the database, as it helps confirm the server environment is functioning.

Alternatively, many hosting companies display the PHP version in the footer of their custom control panel dashboards. If you have no access at all, you can contact your web host's support team; they can tell you the PHP version running on your server.

Will updating PHP break my WordPress site?

It can, but the risk is low if you prepare correctly. The most common cause of breakage is a theme or plugin that is not coded to be compatible with the newer PHP version. This can result in warnings or fatal errors on your site. This is why testing after the update is so important.

To minimize risk, always perform updates on a staging site first—a clone of your live site where you can test safely. If a problem arises, it won't affect your visitors. Keeping your site's code updated, whether it's for core functions like configuring your site's main navigation menu or for a specialized single-page website design, is the best way to ensure smooth transitions during PHP updates.

Professional WordPress Services at WPutopia

Keeping up with technical details like PHP versions, security updates, and compatibility checks can be time-consuming. At WPutopia, we handle these essential maintenance tasks for you. Our service ensures your WordPress site runs on a secure, fast, and updated foundation, giving you peace of mind and freeing you to focus on your content and business.

We offer comprehensive care, including regular theme and plugin updates, security monitoring, performance optimization, and backups. Whether you're looking for guidance on building a website from scratch or need expert hands to manage an existing site, our team provides reliable and professional support tailored to your needs.

Let WPutopia be your partner in maintaining a robust and high-performing WordPress presence. Get in touch with us today to learn more about our maintenance plans and how we can help your website thrive securely in the long term.