WackoWiki

View source for Re: Problems when updating from 6.2.1 to 6.3.0

The error **Undefined constant "MYSQLI_REPORT_OFF"** typically occurs when the **MySQLi extension is not installed or enabled** in your PHP environment.  Without the MySQLi extension, PHP does not recognize MySQLi-specific constants like ##MYSQLI_REPORT_OFF##, ##MYSQLI_REPORT_ERROR##, or ##MYSQLI_REPORT_STRICT##. 

Cause
The **MySQLi extension** is missing or disabled in your php.ini configuration.

There is a similar issue with SQLite:
%%
Fatal error: Uncaught Error: Call to undefined method PDO::sqliteCreateFunction() in /wiki/class/dbpdo.php:57 
Stack trace: 
#0 /wiki/class/dbal.php(28): DbPDO->__construct(Object(Settings)) 
#1 /wiki/class/settings.php(139): Dbal->__construct() 
#2 /wiki/index.php(7): Settings->__construct() 
#3 {main} thrown in /wiki/class/dbpdo.php on line 57
%%

We should contain both cases with a try and catch, showing the user what went wrong, e.g. 
##The MySQLi extension is missing or disabled.##