failed to open stream: Permission denied

[about2flip]

I checked the forum before posting this, and saw a posting but there was no real solution. I am learning to use fopen, and I keep getting

Warning: fopen(exp/runs.txt): failed to open stream: Permission denied in /home/httpd/vhosts/domainname.net/httpdocs/testopen.php on line 2

now here is the codestudying so I am practicing)
<?
$fp = fopen( "exp/runs.txt" , "w" );
?>

my owner permissions are set to rwx, I also set it to rw.
Group permissions are not checked to nothing, the same for public. Just to play around, I set the public and group to r.

I am using a unix server with plesk. I emailed my hsp, and they said it is a third party issue, and they can not help. So I am hopinig someone here knows.

Thanks in advance for your help.

 

[Vragabond]

Your webserver will run as a specific user, if it is set up correctly it will not be root. Check under which user the server runs and check the permissions for that.