I have the same problem as in the closed bug #12995 so im opening a new thread (if this is bad, let me know, it wouldnt happen anymore).
When i put just a file which contains:
<?
echo "test";
?>
i randomly get error message:

Warning: open_basedir restriction in effect. File is in wrong directory in Unknown on line 0

Warning: Failed opening '/www/parba.cz/www/index.php' for inclusion (include_path='.:/usr/local/lib/php') in Unknown on line 0

There is no include in that file ... just only echo.
Im using php-4.1.1 on FreeBSD4.4 and i didnt compile it from ports.


Im adding information from phpinfo that i think should be useful:

PHP Version 4.1.1
System: FreeBSD parba.cz 4.4-RELEASE FreeBSD 4.4-RELEASE #0: Tue Sep 18 11:57:08 PDT 2001     murray@builder.FreeBSD.org:/usr/src/sys/compile/GENERIC  i386 
Build Date: Jan 30 2002 
Configure Command:  './configure' '--with-apxs=/usr/local/apache/bin/apxs' '--enable-safe-mode' '--with-openssl' '--with-zlib' '--enable-bcmath' '--with-bz2' '--enable-calendar' '--enable-ctype' '--with-curl' '--with-db' '--enable-dbase' '--enable-ftp' '--with-gd' '--enable-gd-native-ttf' '--with-imap' '--with-mcal' '--with-mhash' '--with-mysql=/usr/local/mysql/' '--with-pgsql' '--with-mm' '--enable-trans-sid' '--with-snmp' '--enable-sockets' '--enable-inline-optimization' '--with-md5' '--enable-md5' 
Server API: Apache 

And here is my phpinfo();
http://parba.mistral.cz/phpinfo.php
of course it sometimes work and sometimes not - just need some refreshing