Your website could be running software that's no longer receiving security updates—and you may not even know it. One of the most overlooked parts of website hosting is the version of PHP your website uses. Keeping it up to date can improve security, increase performance and ensure compatibility with modern applications.
Whether your website runs WordPress, WooCommerce, Joomla or another PHP-based application, the version of PHP sitting behind the scenes has a direct impact on how your website performs.
What is PHP?
PHP is the programming language that powers many of the world's most popular content management systems, including WordPress, WooCommerce, Joomla, Drupal, Magento and many custom web applications.
Every time someone visits your website, PHP processes requests, communicates with the database and generates the page delivered to their browser.
Why does the PHP version matter?
Each PHP release introduces security updates, performance improvements, bug fixes and new language features.
Running an outdated version means missing those improvements while increasing the risk of security vulnerabilities and compatibility issues.
Better performance with every generation
One of the biggest benefits of upgrading PHP is performance.
Modern PHP releases execute code faster and use memory more efficiently than older versions. For many websites, upgrading PHP alone can noticeably improve page generation times without changing any website code.
That means faster page loads, lower server resource usage, a better visitor experience and more capacity during busy periods.
Sometimes the best performance upgrade isn't a new server—it's simply a newer version of PHP.
Security matters
Supported PHP versions receive ongoing security updates.
Once a version reaches end of life, those updates stop.
If vulnerabilities are discovered after support ends, your website may remain exposed until you upgrade.
Why don't all websites run the latest PHP?
Compatibility.
Older plugins, themes and custom applications may not immediately support the newest PHP release.
That's why upgrades should be tested before being applied to production websites.
Finding the right balance
Running the newest PHP version isn't always the goal. Running a supported PHP version is.
For most businesses, the best choice is the latest version fully supported by their website and its plugins.
How managed hosting makes upgrades easier
A quality hosting platform should allow you to switch PHP versions easily, test compatibility, roll back if required and receive assistance from experienced engineers.
This makes upgrading significantly less stressful.
Signs it's time to upgrade
Consider reviewing your PHP version if your hosting provider warns it's nearing end of life, your CMS recommends a newer version, you're planning a WordPress or Joomla upgrade, new plugins require a later PHP version, or your website is performing poorly.
Choosing the right hosting platform
Look for hosting that provides current PHP releases, multiple supported PHP versions, OPcache enabled, security updates, simple version management and local engineering support.
Final thoughts
PHP plays a critical role in your website's security, performance and long-term reliability.
Keeping your website on a supported PHP version helps reduce risk, improve speed and prepare your business for future updates.
Since 2008, Network Dynamics has helped Australian businesses host and maintain WordPress, Joomla, WooCommerce and custom PHP applications. Our managed hosting platform makes staying current simple, allowing you to focus on your business while we look after the infrastructure.
