Requirements
In order to have these functions available, you must compile PHP with support for the mysqli extension.
Note:
The mysqli extension is designed to work with MySQL version 4.1.13 or newer, or 5.0.7 or newer. For previous versions, please see the MySQL extension documentation.
Коментарии
PHP 7.4 now supports MySQL with caching_sha2_password, although it is a bit unclear around older versions, there seems to be conflicting reports. What is the support of caching_sha2_password in PHP < 7.4?