Al terminar la instalación de Joomla sobre xampp puede darse el caso que nos aparezca este error:

Strict Standards: Static function JDatabase::test() should not be abstract in C:\xampp\htdocs\joomla\libraries\joomla\database\d atabase.php on line 350
Strict Standards: Accessing static property JCache::$_handler as non static in C:\xampp\htdocs\joomla\libraries\joomla\cache\cach e.php on line 394
Strict Standards: Accessing static property JCache::$_handler as non static in C:\xampp\htdocs\joomla\libraries\joomla\cache\cach e.php on line 396
Strict Standards: Accessing static property JCache::$_handler as non static in C:\xampp\htdocs\joomla\libraries\joomla\cache\cach e.php on line 396
Strict Standards: Accessing static property JCache::$_handler as non static in C:\xampp\htdocs\joomla\libraries\joomla\cache\cach e.php on line 396
Strict Standards: Accessing static property JCache::$_handler as non static in C:\xampp\htdocs\joomla\libraries\joomla\cache\cach e.php on line 396
Strict Standards: Accessing static property JCache::$_handler as non static in C:\xampp\htdocs\joomla\libraries\joomla\cache\cach e.php on line 394
Strict Standards: Accessing static property JCache::$_handler as non static in C:\xampp\htdocs\joomla\libraries\joomla\cache\cach e.php on line 396
Strict Standards: Accessing static property JCache::$_handler as non static in C:\xampp\htdocs\joomla\libraries\joomla\cache\cach e.php on line 396
Strict Standards: Accessing static property JCache::$_handler as non static in C:\xampp\htdocs\joomla\libraries\joomla\cache\cach e.php on line 396
Strict Standards: Accessing static property JCache::$_handler as non static in C:\xampp\htdocs\joomla\libraries\joomla\cache\cach e.php on line 396
Strict Standards: Accessing static property JCache::$_handler as non static in C:\xampp\htdocs\joomla\libraries\joomla\cache\cach e.php on line 396
Strict Standards: Accessing static property JCache::$_handler as non static in C:\xampp\htdocs\joomla\libraries\joomla\cache\cach e.php on line 396
....

Pero que no cunda el pánico esto es culpa del php que tenemos instalado en el xampp, y con cambiar un par de cosas desaparecerá nuestro error.

Para ello vayamos a:

c:\xammp\php y editemos el fichero php.ini

Buscamos la línea donde pone:

error_reporting = E_ALL | E_STRICT

y la reemplazamos por:

error_reporting = E_ALL & ~E_NOTICE

y buscamos la linea:

display_errors = On

y lo cambiamos por:

display_errors = Off

y ya no nos saldrán más esos errores.