Drupal5 does not support PHP 5.4.3 and for those who have sites which are based on drupal 5, this causes major headache. so some guys has wrote a patch which you can apply to core files and use drupal 5 on php 5.4.3.
you can download the patch here:
https://www.drupal.org/node/1016008
Thanks,
FUZZING.IN
