Difference between revisions of "System Requirements"
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Revision as of 23:21, 14 September 2021
Most current web servers* with PHP & MySQL installed will be capable of running WHMCS.
The following table shows the minimum and recommended system requirements for running WHMCS 8.0 and later.
Looking for the requirements for the earlier WHMCS 7.5 - 7.10 versions? Click here
| Requirement | Minimum | Recommended |
|---|---|---|
| PHP Version | 7.2 | Latest 7.3 or 7.4 Release |
| PHP Memory Limit | 64MB | 128MB** |
| PHP Database Extension | PDO | PDO |
| PHP Extensions | Curl with SSL GD2 Image Library |
Iconv MBString |
| MySQL Version | 5.2.0 | Latest 5.7 |
| Ioncube Loaders | 10.2.0 or later | The latest 10.x Ioncube for your PHP version |
View all supported PHP versions for each version of WHMCS in the PHP Version Support Matrix
While these are the minimum requirements, we strongly recommend using the latest available, stable releases of all software and extensions. Recommended suggestions are correct as at 4th August 2020.
A detailed discussion of the recommended system environment configurations (OS, Web Server, Database Engine, PHP and Ioncube) is published in the System Environment Guide.
* We validate WHMCS to run in Linux based environments running the Apache web server. Other environments such as Windows based configurations may experience compatibility issues with which Technical Support cannot assist.
** Memory requirements vary depending upon the size and volume of activity in an installation. Your exact requirements may differ.
*** As part of PCI compliance, a SSL library capable of TLS 1.2 may be required. If using OpenSSL, version 1.0.1c or newer is recommended.