Facebook reviews by long-term WPX customers


What is the difference between PHP versions?

is the dominant programming language behind the majority of websites and platforms on the web (including WordPress).

As such, it constantly undergoes updates and improvements.
It is important to keep your PHP version up to date to ensure that your website is as fast and secure as possible. As far as the PHP code is concerned however, websites can still have other vulnerabilities.

There are three main factors in determining which PHP version to use on your websites:

  • The requests-per-second performance of the website/s running the PHP code (more is better)
  • The memory usage demands of each PHP version (less is better)
  • The future technical support those versions will offer (or not)


Factor 1: Evaluating Requests-Per-Second Speed

Here are the results of our own recent WPX Hosting speed tests on the different PHP versions (higher is better);

Requests per Second

The speed difference between PHP 5.6 and PHP 7.0 is very significant; a 150% increase in requests per second.

The end result for you, if using PHP 7.X, is a much faster loading website.

Factor 2: Memory Usage

Here are the results of our own recent WPX Hosting PHP memory usage tests (lower is better);

Resident and Shared memory

Though the improvement in memory usage is not as significant as the speed increase, it is still a very healthy 25%.

Let’s examine the support next.

Factor 3: Future Support

The chart below shows the planned support timelines on the existing PHP versions and their statuses (courtesy of php.net):

Flow chart

As seen above, PHP 5.3, 5.4, 5.5 are already past the period for active support and critical security fixes. PHP 5.6’s active support finishes at the end of 2016.

This means that PHP 7.X will be the only version fully supported for 2017 and onwards. WordPress also recommends updating your PHP to at least 7.0!

With all this in mind, the decision to upgrade your sites to PHP 7.X should be an easy one.
If you'd like to know more about upgrading the PHP version of your website, you can read our article or ask us to do it for you!

Be sure to check that your websites are running on PHP 7.X. If you encounter any problems, revert to your previous PHP version and let us know!

If at any point you get stuck, or aren't sure how to proceed with PHP changes for your site, just raise a support ticket with us here:


or talk to our 24/7 Support Team via Live Chat (in the bottom-right of your screen) and we'll answer ASAP!


See what our happy customers can share about WPX service.

Learn about our hosting service in Germany.

Read details about our promotions.

Check out our performance in Australia.

Find more details about WPX in New Zealand.

Our amazing service and support are available in the Netherlands.

Start your WPX Hosting journey in Singapore now!

Discover more about our UK hosting.

Have you checked out the tactics that can make your WP blog running at warp speed?

You can also read our Trustpilot reviews.

More detailed information about WPX French service.

Read why the speed of your website is really important.

Did you visit our Brazilian WordPress hosting?

Stay up-to-date on WPX company news here.

"If you ever plan to start a blog, then I suggest WPX Hosting. Support is amazing. Seriously, just insane."

Franklin Hatchett, Online Dimes (read full review here)
Read All Independent Reviews Here