robbat2 as you told me, here comes the link to upstream patch which fixes problems with overloading introduced by 4.3.10. Without this php can segfault and this unfortunately happens with well known PEAR package. Upstream Bug http://bugs.php.net/bug.php?id=31106 Upstream Patch http://chora.php.net/diff.php/Zend/Attic/zend_execute.c?sa=1&r1=1.316.2.42&r2=1.316.2.43&ty=u
PHP 4.3.11, which solves this issue, will be out soon.