[Solved] PHP fopen() Error: failed to open stream: Permission denied

Finally You have fethed the error. Is it?

Warning: fopen(/path/to/file.ext) [function.fopen]: failed to open stream: Permission denied

NOTE: You are opening a file. Make sure the correct file permissions you have.

In Ubuntu the php user group is www-data:www-data and for centos is apache:apache
- Ensure your user www-data is a member of root

adduser www-data root

Then use this command in terminal
chmod g+rw /path/to/file/

Try with php fopen again:

$myFilePath = "/path/to/file.ext";
$file_handle = fopen( $myFilePath, 'r+' );

Also! You can chmod 775 for you directory.
chmod 0775 /path/to/file/

Check the followings:

The directory has the correct file permissions (755) and the correct ownership. This is true all the way up the path to /home.
Ensure correct directory as confirmed by getcwd()
The test PHP script hash the same ownership as the path trying to write to and correct permission (644).
PHP safe mode is disabled in php.ini.
fopen is not a disallowed PHP function.
The use of open_basedir is disabled.
A parent directory has the wrong permissons.

Yet Not?

Remember that in order to reach a file, ALL parent directories must be readable by www-data. You strace output seems to indicate that even accessing /var/log/apache2/writetest is failing. Make sure that www-data has permissions on the following directories:

/ (r-x)
/var (r-x)
/var/log (r-x)
/var/log/apache2 (r-x)
/var/log/apache2/writetest (rwx)
/var/log/apache2/writetest/writetest.log (rw-)

Yet Not Again?

Could be a SELinux issue, even if Debian doesn't ship it in the default installation your provider could have enabled it. Look for messages in /var/log with

grep -i selinux /var/log/{syslog,messages}

If that's the cause and you need to disable it, here are instructions: look for file /etc/selinux/config, here it's default content. Change SELINUX directive to disabled and reboot the system.

# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#   enforcing - SELinux security policy is enforced.
#   permissive - SELinux prints warnings instead of enforcing.
#   disabled - SELinux is fully disabled.
SELINUX=disabled
# SELINUXTYPE= type of policy in use. Possible values are:
#   targeted - Only targeted network daemons are protected.
#   strict - Full SELinux protection.
SELINUXTYPE=targeted

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Sael

I'm Sael. An expert coder and system admin. I enjoy to make codes easy for novice.

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