KnowledgeTree and PHP 5.3

The KnowledgeTree doesn't work with new PHP versions. We got always deprcated and warning messages.

You should edit the file config/dmsDefaults.php (under KnowledgTree folder) and find these lines:

error_reporting(E_ALL & ~E_NOTICE);
ini_set('display_errors', '1');
ini_set('display_startup_errors', '1');

add this line below those:

error_reporting(0) ;

Source: http://tpokorra.blogspot.de/2011/03/knowledge-tree-and-php-533.html