Since the testkit uses php.ini-dist, which defines at least warning level, the session tests, should disable warnings.

There may be a larger problem, since I see /var/tmp/php_sessions being used, which is my php.ini setting i.s.o. php.ini-dist's /tmp.

--- ./ext/session/tests/001.exp Wed Aug 21 00:20:53 2002
+++ ./ext/session/tests/001.out Wed Aug 21 00:20:53 2002
@@ -1 +1,5 @@
+/home/mdev/cvs/php-4.2.3//ext/session/tests/phpt.028443(15) : Warning - Cannot send session cookie - headers a
lready sent
+/home/mdev/cvs/php-4.2.3//ext/session/tests/phpt.028443(15) : Warning - Cannot send session cache limiter - he
aders already sent
+/home/mdev/cvs/php-4.2.3//ext/session/tests/phpt.028443(15) : Warning - open(/var/tmp/php_sessions/sess_995415
a8b60b7a6b1d607eb258add0c9, O_RDWR) failed: No such file or directory (2)
+/home/mdev/cvs/php-4.2.3//ext/session/tests/phpt.028443(20) : Warning - Session object destruction failed
 baz|O:3:"foo":2:{s:3:"bar";s:2:"ok";s:3:"yes";s:4:"done";}arr|a:1:{i:3;O:3:"foo":2:{s:3:"bar";s:2:"ok";s:3:"ye
s";s:4:"done";}}