A quick notice how to disable the errors that appear after upgrading the php to 5.4 which is by the way a lot faster than ever before.

cake/bootstrap.php
replace:

error_reporting(E_ALL & ~E_DEPRECATED);

with

error_reporting(E_ALL & ~E_DEPRECATED & ~E_STRICT);

cake/libs/debugger.php
after:

$files = $this->trace(array('start' => 2, 'format' => 'points'));

add

if(!isset($files[0]['file'])) return;