As the digital landscape continues to evolve, content management systems (CMS) like WordPress play a crucial role in enabling individuals and businesses to establish a compelling online presence. With each update, WordPress introduces innovative features and enhancements to cater to the ever-changing needs of its users. One such groundbreaking change is set to take place with the release of WordPress 6.4 on August 8th, as the platform bids farewell to PHP 5 and embraces PHP 7 as its new minimum requirement. This shift marks a significant milestone in WordPress’ journey, fostering a more secure, efficient, and cutting-edge environment for users and developers alike.

With this new upgrade from WordPress, we will also be dropping support for PHP 5 in all of our plugins; although they may work, going forward they will no longer be tested on PHP 5.

The Necessity of PHP Upgrades

PHP, a server-side scripting language, serves as the backbone of WordPress. It is responsible for rendering dynamic content, handling database interactions, and executing various functionalities within the CMS. The version of PHP that WordPress supports significantly impacts the overall performance, security, and stability of the platform.

Until now, WordPress has been backward compatible with PHP 5, a version that has served as the foundation for many years. However, as technology advances and security threats evolve, continuing support for older PHP versions becomes increasingly challenging and risky.

Benefits of PHP 7

The decision to drop support for PHP 5 and embrace PHP 7 comes with several compelling benefits for both users and developers:

  • Performance Boost: PHP 7 introduces significant performance improvements over its predecessor. With optimizations like the new Zend Engine, PHP 7 is around twice as fast as PHP 5.6, resulting in quicker page load times and enhanced overall website speed.
  • Enhanced Security: As PHP versions age, security vulnerabilities become more prevalent. By upgrading to PHP 7, WordPress users can take advantage of the latest security patches and features, ensuring a more robust defense against potential threats.
  • Support and Updates: With PHP 5 no longer actively maintained as of late 2018, users relying on this outdated version are left without access to vital security updates and bug fixes. PHP 7, on the other hand, remains actively supported, ensuring continuous improvement and stability.
  • Compatibility with Modern Plugins and Themes: Many plugin and theme developers are already optimizing their products for PHP 7, which means users who upgrade can enjoy the benefits of a more extensive range of compatible, up-to-date, and feature-rich extensions.
  • Future-Proofing: Embracing PHP 7 positions WordPress for future advancements and opportunities in the evolving digital landscape, ensuring that the platform remains relevant and adaptable for years to come.

Why you should use PHP 8 instead of PHP 7:

Switching from PHP 7 to PHP 8 offers numerous advantages that make it a compelling choice for developers and website owners. Let’s explore the reasons why someone should use PHP 8 over PHP 7:

  • Performance Boost: PHP 8’s JIT compiler takes performance gains to a new level. With just-in-time compilation, PHP 8 can optimize and execute code more efficiently, resulting in significantly faster execution times compared to PHP 7. This performance boost translates to improved website loading times and a better user experience.
  • Improved Memory Usage: PHP 8 introduces notable memory usage optimizations, allowing applications to utilize system resources more efficiently. This means your website can handle more concurrent users without experiencing significant increases in memory consumption.
  • Union Types and Named Arguments: PHP 8 introduces union types, enabling developers to define that a parameter or return value can be one of multiple data types. This enhances code flexibility and readability. Additionally, named arguments make function calls more explicit and self-documenting, making code maintenance and collaboration easier.
  • Match Expression: PHP 8’s match expression replaces the traditional switch statement, offering a more powerful and concise way to handle multiple conditions. With match, developers can return values and make complex comparisons with less code.
  • Nullsafe Operator: The nullsafe operator (?->) in PHP 8 streamlines code when dealing with potentially null values. It simplifies chaining operations, reducing the need for verbose null checks and resulting in cleaner, more concise code.
  • Attributes: PHP 8 introduces native attributes, allowing developers to add metadata to classes, methods, and properties. This makes it easier to annotate code and enables better integration with tools that use metadata, leading to improved code organization and readability.
  • Enhanced Error Handling: PHP 8 introduces the throw expression, which enables developers to throw exceptions from within expressions. This simplifies error handling and allows for more concise and expressive code when dealing with exceptional cases.
  • Long-Term Support: As the latest major version of PHP, PHP 8 is likely to receive long-term support and regular updates, ensuring that your codebase remains secure and compatible with future technologies.

Preparing for the Update

While WordPress users should undoubtedly welcome the transition to PHP 7, it is essential to be prepared for the update. Here are some steps to ensure a smooth transition:

  1. Check Server Compatibility: Before updating to WordPress 6.4, ensure that your hosting provider supports PHP 7. Most reputable hosting companies have already adopted PHP 7, but it’s crucial to verify this to avoid any compatibility issues.
  2. Update Plugins and Themes: Update all your existing plugins and themes to their latest versions, as many developers have already optimized their products for PHP 7 compatibility.
  3. Backup Your Website: As with any significant update, creating a full backup of your website is vital. This ensures that, in the unlikely event of any issues during the update process, you can restore your site to its previous state.
  4. Test Your Website: After the update, thoroughly test your website’s functionality to identify and resolve any compatibility issues that may have arisen during the transition.

It’s the future!

The release of WordPress 6.4 and its transition to PHP 7 marks a transformative step forward for the world’s most popular content management system. By dropping support for PHP 5, WordPress is embracing a more secure, efficient, and future-proof environment. This transition not only benefits users with improved performance and enhanced security but also enables developers to create cutting-edge plugins and themes.


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As we move into this new era, users are encouraged to embrace the change, prepare diligently for the update, and look forward to a more advanced and empowered WordPress experience. With PHP 7 at its core, WordPress is well-equipped to continue shaping the future of web development and deliver an even more impressive online presence for all its users.