How to Update PHP for WordPress: A Comprehensive Guide to Boosting Performance and Security

Table of Contents

1. Introduction
2. Why PHP Matters to Your WordPress Site
3. How to Check Your Current PHP Version in WordPress
4. What to Do Before Updating PHP in WordPress
5. How to Update Your PHP Version in WordPress
6. What to Do After Updating PHP
7. Troubleshooting Common Issues
8. Conclusion
9. FAQ

Introduction

Did you know that a staggering 79% of website visitors who encounter a website that takes too long to load will abandon it? In the rapidly evolving digital landscape, the speed and security of your website are critical to maintaining user engagement and enhancing your online presence. If your website is built on WordPress, one of the most effective ways to improve both speed and security is by ensuring you’re running the latest version of PHP.

PHP, or Hypertext Preprocessor, is the scripting language that powers WordPress. Each version of PHP introduces improvements in performance and security that can significantly impact your website’s functionality. In this post, we will delve into the importance of updating PHP for WordPress, guide you through the steps to check and update your PHP version, and discuss best practices to ensure a smooth transition.

At Premium WP Support, we pride ourselves on providing our clients with professional, reliable, and client-focused solutions. We understand that navigating technical updates can be daunting, which is why we’re committed to empowering businesses to start smart and grow fast.

So, how does your current PHP version affect your website’s performance and security? Are you ready to take the step toward a faster, more secure WordPress site? Let’s dive into the details.

Why PHP Matters to Your WordPress Site

Understanding the significance of PHP updates is crucial for any WordPress site owner. Here are the primary reasons why keeping PHP up-to-date can enhance your website:

1. Improved Performance

Updating to the latest version of PHP can lead to significant performance improvements. Each iteration of PHP generally offers better memory management, faster execution times, and optimized performance, which means your website can load quicker and handle more traffic effectively.

2. Enhanced Security

Older PHP versions are more vulnerable to security threats. The latest versions include patches for known vulnerabilities, making your site less susceptible to attacks. Running outdated software can expose your site to hackers, leading to potential data loss and reputational damage.

3. Compatibility with WordPress Core, Themes, and Plugins

WordPress is continuously updated to enhance functionality and security. However, these updates often require a compatible PHP version. Using outdated PHP can lead to compatibility issues with WordPress core, themes, and plugins, resulting in errors or a dysfunctional site.

4. SEO Benefits

Search engines favor faster websites. A website that loads quickly tends to rank higher in search engine results, leading to increased visibility and traffic. By updating your PHP, you enhance page load speed, which can positively influence your SEO efforts.

5. Access to New Features

Each version of PHP introduces new features that can enhance your website’s functionality. By updating, you can leverage these advancements to improve user experience and streamline your site’s performance.

How to Check Your Current PHP Version in WordPress

Before making any updates, it’s essential to determine which PHP version your site is currently using. Here’s how to check your PHP version within the WordPress dashboard:

1. Log in to Your WordPress Admin Dashboard.
2. Navigate to Tools > Site Health from the sidebar menu.
3. Click on the Info tab.
4. Expand the Server section and look for the PHP version.

If your PHP version is below 7.4, it’s time to consider an update. If you see a warning such as “PHP Update Required” or “PHP Update Recommended,” this is a clear indicator that you should take action.

What to Do Before Updating PHP in WordPress

Updating PHP is a straightforward process, but taking precautions is essential to prevent potential issues. Here’s a checklist of steps to follow before proceeding with the update:

1. Backup Your Website

Creating a full backup of your website ensures that you can restore it in case anything goes wrong during the update process. This includes both your database and files.

2. Check PHP Compatibility

Use the PHP Compatibility Checker plugin to test your themes and plugins for compatibility issues with the new PHP version. While this plugin isn’t foolproof, it can help identify potential problems.

3. Update WordPress, Themes, and Plugins

Ensure that your WordPress installation, themes, and plugins are all up to date. This step helps minimize compatibility issues with the new PHP version.

4. Test on a Staging Site

If possible, create a staging site to test the update before applying it to your live site. This allows you to identify any issues without affecting your visitors.

How to Update Your PHP Version in WordPress

Now that you’ve prepared for the update, it’s time to discuss how to change your PHP version. The process may vary based on your hosting provider, but here are general steps you can follow:

Step 1: Access Your Hosting Control Panel

Login to your hosting account. Most hosting providers have a control panel where you can manage your website settings.

Step 2: Locate the PHP Settings

Depending on your host, look for options labeled as PHP Settings, PHP Version, or similar. This is typically found in sections like Advanced, Software, or Website Settings.

Step 3: Choose a New PHP Version

From the PHP settings, select the desired PHP version you wish to update to. We recommend using the latest stable version (e.g., PHP 8.x) for the best performance and security.

Step 4: Save Changes

After selecting the new PHP version, save your changes. Your hosting provider may take a few moments to apply the new settings.

Step 5: Test Your Website

Once the update is complete, visit your website to ensure everything is working correctly. Check key functionalities, forms, and any interactive elements to confirm that there are no issues.

Updating PHP in Different Hosting Providers

The process to update PHP can differ across various hosting providers. Here’s a quick overview of how to update PHP on some popular platforms:

1. Bluehost

• Log in to your Bluehost account.
• Navigate to the Websites tab, select your website, and click Settings.
• Scroll down to the PHP Version section and click Change next to your current version.
• Choose the new version and click Change.

2. SiteGround

• Log in to your SiteGround account and go to the Websites section.
• Click on Site Tools for the desired website.
• Select PHP Manager under the Devs section.
• Click the pencil icon next to your current PHP version, select the new version, and click Confirm.

3. HostGator

• Access your HostGator control panel.
• Select the Websites section.
• Click on Settings for your website.
• In the PHP Version section, click Change and select your desired version.

4. WP Engine

• Log in to your WP Engine dashboard.
• Click on My Sites and select your website.
• Scroll to the Updates section and click the PHP version number link.
• Choose the new PHP version and confirm the change.

5. Contact Hosting Support if Needed

If you encounter difficulties or have questions during the process, don’t hesitate to contact your hosting provider’s support team. They can provide guidance tailored to your specific setup.

What to Do After Updating PHP

After updating your PHP version, it’s crucial to follow up with a few steps to ensure everything is functioning correctly:

1. Check for Errors

Visit your website and check for any visible errors or issues. If you notice any problems, refer back to the compatibility testing you conducted earlier.

2. Monitor Site Performance

Keep an eye on your site’s performance metrics, including load times and user interactions. If you notice significant improvements, you’re on the right track!

3. Update Plugins and Themes Regularly

Continuously monitor for updates to your themes and plugins. Keeping everything up-to-date helps ensure ongoing compatibility with PHP and WordPress.

Troubleshooting Common Issues

What If My Site Breaks After Updating PHP?

In rare cases, updating PHP can cause compatibility issues with your themes or plugins. Here are steps to troubleshoot if you encounter problems:

1. Deactivate Plugins: Begin by deactivating all plugins. If your site starts working again, reactivate them one by one to identify the problematic plugin.
2. Switch Themes: If deactivating plugins doesn’t help, try switching to a default WordPress theme (like Twenty Twenty-One) to see if the issue stems from your theme.
3. Refer to Error Logs: Check your site’s error logs to identify any specific issues that may arise.
4. Revert to Previous PHP Version: If compatibility issues persist, you can revert to your previous PHP version until you resolve the conflicts.

Conclusion

Updating your PHP version is a vital aspect of maintaining a secure, efficient, and high-performing WordPress site. By staying current with PHP updates, you can enjoy faster load times, enhanced security, and improved overall functionality. At Premium WP Support, we’re here to assist you through every step of the process, ensuring you can focus on growing your business.

If you have questions or need assistance with updating your PHP version, book your free, no-obligation consultation today. Our team of WordPress experts is ready to provide the support you need. Additionally, explore our WordPress development services for tailored solutions to keep your website running smoothly.

FAQ

How often should I update PHP for my WordPress site?

We recommend checking your PHP version at least every six months and updating it whenever a new stable version is released. Keeping your PHP up-to-date ensures optimal performance and security.

What should I do if my website breaks after updating PHP?

If your website encounters issues after a PHP update, try deactivating plugins and switching to a default theme to identify the cause. You can also revert to your previous PHP version until the issue is resolved.

Is it necessary to create a backup before updating PHP?

Yes, creating a backup is essential. It allows you to restore your site in case anything goes wrong during the update process.

Can I update PHP through my WordPress dashboard?

No, PHP is managed through your hosting provider’s control panel, not directly through the WordPress dashboard.

What version of PHP is recommended for WordPress?

As of now, we recommend using PHP version 8.x for optimal performance and security. Always check for the latest stable version before updating.

By following the steps outlined in this guide, you’re on your way to enhancing your WordPress site’s performance and security. If you’re ready to take the next step, contact us to start your project today!