FAQ
PHP
Choosing a PHP version, upgrading to a newer one, memory limit and troubleshooting errors.
- Choosing a PHP versionWhich PHP versions we offer, how to switch the version for each website separately in the admin panel, and which one to choose.
- Moving to a newer PHP version without downtimeA checklist for upgrading PHP safely: back up, test on a subdomain, avoid common problems after the switch and roll back if needed.
- PHP memory limit: what it is and when to raise itWhat the PHP memory limit restricts, how to recognize when it runs out, and what to check before asking for a higher value.
- PHP errors: how to display them and find the causeWhat to do about a white screen or a 500 error, how to turn on debugging in WordPress or your own scripts, and how to read the most common messages.
- The PHP safe_mode functionWhat PHP safe_mode was, why it was removed in PHP 5.4, and why you do not need to worry about it on our web hosting.