Description:
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Webserver version: Apache/2.0.48 (Unix) mod_ssl/2.0.48 OpenSSL/0.9.6b PHP/4.3.4 

Not sure whether this _IS_ a php bug, but I guess it is..

Sometimes I get an error while opening a website on our server, when refreshing however, the error is gone.

We do have open_basedir set, but only on 1 vhost as you can see below.

Reproduce code:
---------------
The vhost used:

<VirtualHost *>
    RewriteEngine on
    RewriteOptions inherit
    DocumentRoot /usr/local/apache/htdocs
    ServerName selena.nl3gta.nl
    ErrorLog /var/log/httpd/selena.nl3gta.nl-error_log
    CustomLog /var/log/httpd/selena.nl3gta.nl-access_log common
</VirtualHost>

The vhost with the open_basedir: 

<VirtualHost 62.221.212.133:80>
   ServerAdmin root
   DocumentRoot /home/sites/xxxx
   ServerName xxxx
   php_admin_value open_basedir /home/sites/xxxx
   php_admin_value safe_mode On
</VirtualHost>


Expected result:
----------------
No error, i guess.

Actual result:
--------------
Warning: Unknown(): open_basedir restriction in effect. File(/usr/local/apache/htdocs/-/index.php) is not within the allowed path(s): (/home/sites/xxxx) in Unknown on line 0

Warning: Unknown(/usr/local/apache/htdocs/-/index.php): failed to open stream: Operation not permitted in Unknown on line 0

Warning: (null)(): Failed opening '/usr/local/apache/htdocs/-/index.php' for inclusion (include_path='.:/usr/local/lib/php') in Unknown on line