PHP Warning: Unknown: failed to open stream

Question

I edited the apache httpd.conf file recently for the mod_rewrite to work. I don\'t know if this problem originated from that or not, but i\'m getting this problem from that

Answer 1

I got this problem when insert wrong file address into .htaccess

php_value auto_prepend_file "/home/user/wrong/address/config.php"

So if you use auto_prepend_file check your file path. It called from .htaccess so PHP can't determine error file and line.

Answer 2

Here some guide how to fix it. Go to :

cd /var/www

sudo chown www-data:www-data * -R

sudo usermod -a -G www-data username

Change userneme with your username. I hope it help.

Answer 3

I just came across of this same problem and in my case it was caused by selinux. Disabling it solved the issue. And no, I don't need selinux on my workstation, thank you.

Answer 4

It is a SELinux blocking issue, Linux prevented httpd access. Here is the solution：

# restorecon '/var/www/html/wiki/index.php'
# restorecon -R '/var/www/html/wiki/index.php'
# /sbin/restorecon '/var/www/html/wiki/index.php'

Answer 5

In Fedora 25, it turned out to be an SE Linux issue, and the notification gave this solution which worked for me.

setsebool -P httpd_read_user_content 1

Answer 6

In my case the group _www that apache uses was missing in the folder's access list, so first I had to add the missing group, like so:

sudo chown -R _www ~/path-to-folder

Change _www to whatever user or group that apache is running as.

Find out apache's user/group using apachectl -S

The output is huge, but look at the very end something like:

User: name="_www"
Group: name="_www"