Ever wondered why your WordPress site isn’t running as smoothly or securely as it could? The answer might be hiding in your PHP version. PHP is the engine behind WordPress, and keeping it updated is crucial for speed, security, and compatibility.
This article will guide you through why updating PHP matters, exactly how to do it safely, and practical tips to make the process hassle-free. Let’s get your WordPress site performing at its best!
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How to Update PHP for WordPress: The Complete Guide
When you use WordPress to run your website, the PHP version powering your server is more important than you might think. PHP is the underlying programming language for WordPress. Keeping it updated ensures your site is faster, more secure, and compatible with the latest WordPress features.
If you’ve wondered how to update PHP for WordPress and want to do it the right way, this guide will walk you through everything—step-by-step. You’ll also discover why updating PHP matters, practical advice, and solutions to common challenges.
Why Updating PHP in WordPress Matters
Before jumping into the steps, let’s explore why updating your PHP version is crucial:
- Speed: Newer PHP versions can make your website load noticeably faster.
- Security: Updates fix vulnerabilities that hackers exploit in older PHP versions.
- Compatibility: The latest WordPress and plugins require newer PHP versions to work correctly.
- Support: Web hosts only support and troubleshoot sites running up-to-date software.
An outdated PHP version puts your website at risk. It can cause plugin conflicts, break themes, and even make your site stop working.
Simple Steps to Update PHP in WordPress
While updating PHP may sound technical, it’s more manageable than you think. Let’s break it down:
1. Check Your Current PHP Version
Before making any changes, find out what version you’re running:
- Log in to your WordPress dashboard.
- Go to Tools > Site Health.
- Click on the Info tab and scroll down to the Server section.
- You’ll see the current PHP version listed.
2. Backup Your Website
A backup ensures you can restore your site if anything goes wrong. Focus on these areas:
- Files: Themes, plugins, and uploads directory.
- Database: All your content, settings, and users.
Most hosting companies have backup options. You can also use popular plugins like UpdraftPlus, BackupBuddy, or Duplicator.
3. Ensure Compatibility
Not all themes and plugins are ready for the latest PHP. To avoid problems:
- Update WordPress to the latest version.
- Update all themes and plugins.
- Visit plugin and theme pages to confirm PHP compatibility.
- Use testing plugins or tools (like PHP Compatibility Checker) if available.
4. Switch PHP Versions in Your Hosting Control Panel
Here’s where you’ll actually change the PHP version. This process differs slightly depending on your host, but common steps include:
- Log into your hosting account (cPanel, Plesk, or custom dashboard).
- Find the section for PHP or Software (labels may vary).
- Select “PHP Version Manager” or “Change PHP Version.”
- Choose the latest stable version recommended (often PHP 8.1 or newer).
- Apply or save the changes.
Tip: Some hosts require you to select the directory or domain first.
5. Test Your Website
After updating:
- Visit your homepage and a few internal pages.
- Log into your WordPress dashboard.
- Check for broken functions, missing images, or error messages.
- Test important features (contact forms, shop checkout, etc.).
If issues occur, revert to the previous PHP version (via your hosting panel) and troubleshoot—which could involve updating or replacing incompatible plugins/themes.
6. Schedule Regular PHP Reviews
PHP evolves, and new versions arrive regularly. Make it a habit to:
- Set calendar reminders to check PHP versions once or twice a year.
- Review WordPress, theme, and plugin compatibility notes.
The Benefits of Updating PHP for WordPress
Let’s recap some top advantages:
- Improved Performance: Sites can run up to 3x faster between major PHP upgrades.
- Stronger Security: Newer PHP versions patch known exploits.
- More Features: Access improved code functions and compatibility with modern plugins.
- Better Hosting Support: Hosts prioritize help for sites using current PHP releases.
Challenges and How to Overcome Them
Updating PHP comes with a few hurdles, but most are straightforward to overcome.
Plugin and Theme Incompatibility
Problem: Some plugins or themes may not work with the newest PHP version.
Solution:
– Update all extensions before switching PHP.
– Test on a staging site or use a local environment, if possible.
– Contact developers if an essential plugin isn’t compatible.
Custom Code Issues
Problem: Custom modifications may throw errors on new PHP.
Solution:
– Review and update custom functions.
– Hire a WordPress developer to audit and modernize code.
Limited Hosting Controls
Problem: Not all hosting panels allow you to change PHP yourself.
Solution:
– Contact hosting support directly and request a PHP version change.
– Consider switching to a host that empowers you with up-to-date PHP support.
Practical Tips and Best Practices
- Always backup before making any changes.
- Update WordPress, themes, and plugins first for maximum compatibility.
- Test on a staging site if your host or builder offers this feature.
- Choose “long term support” PHP versions, as these have extended security patches.
- Contact your host’s support team if you’re unsure or face issues.
- Monitor your website for a few days post-update, especially for contact forms, checkout, and interactive features.
Cost Tips
Updating PHP in WordPress is generally free. Most hosting plans include support for the latest PHP versions.
However, consider the following:
- If your current host doesn’t offer newer PHP, upgrading might prompt a switch to a higher-tier or different hosting provider. Compare packages to avoid paying more than necessary.
- Hiring a developer for troubleshooting or custom code updates could incur a one-time fee. Shop around, and check freelance platforms for competitive rates.
- Premium backup plugins may offer convenience, but there are reliable free options as well—use what fits your budget.
Special Considerations for Common Hosting Providers
Most popular hosts, whether they use cPanel, Plesk, or custom dashboards, offer easy PHP management:
- If you use managed WordPress hosting, your provider may automatically update PHP or notify you when a new version is available.
- For shared, reseller, or cloud hosting, look under software or development settings for PHP controls.
If you encounter any difficulties, your host’s support team is your best ally. They handle PHP requests every day and can guide you through the process with minimal downtime.
Summary
Updating PHP in WordPress is essential for speed, security, and compatibility. The process can seem daunting if you’re new, but with a careful step-by-step approach—backing up, checking compatibility, updating via your control panel, and testing your site—you can make the upgrade confidently and smoothly. Regular reviews and best practices will keep your WordPress site in top shape.
Frequently Asked Questions (FAQs)
How do I know which PHP version my WordPress site is using?
You can find your current PHP version in your WordPress dashboard by going to Tools > Site Health > Info > Server. Alternatively, your hosting control panel usually displays the PHP version for each website.
Will updating PHP break my website?
Not if you follow the right steps. Always back up your site, update themes and plugins, and test for compatibility. Most websites update smoothly. If something breaks, you can revert your changes.
What PHP version should I use for WordPress?
Use the latest stable version recommended by WordPress, often PHP 8.1 or newer. Avoid end-of-life versions like PHP 7.4 or lower, as they no longer receive security updates.
Can I update PHP in WordPress without access to hosting control panel?
In most cases, PHP can only be updated through your hosting control panel. If you don’t have access, contact your host’s support and request the update.
Does updating PHP cost anything?
For most sites and hosting plans, updating PHP is included at no extra cost. Additional costs may occur if you need developer assistance or decide to switch hosting providers.
By keeping your PHP version updated, your WordPress site will stay fast, secure, and easier to manage. If you have questions or concerns, don’t hesitate to reach out to your web host or a WordPress professional for support.