What are the PHP requirements for WHMCS?

Question

The requirements for WHMCS V 8.9 are in the chart below.

Requirement	Minimum	Recommended
PHP Version	7.2	8.1
PHP Memory Limit	64MB	128MB
PHP Database Extension	PDO	PDO
PHP Extensions	Curl with SSL GD2 Image Library JSON Support XML	Iconv MBString GMP OpenSSL BC Math Intl Fileinfo
MySQL Version	5.2.0	Latest 5.7
Ioncube Loaders	10.2.0 or later	The latest 10.x Ioncube for your PHP version

Please note that you should check the WHMCS site for the most up-to-date requirements for the WHMCS software.