apache 2.2 - PHP Errors are not stored on CentOS Server

I just adjusted the php.ini on my CentOS 64 Bits VPS in /etc/php.ini to log PHP errors:

cat /etc/php.ini | grep php-errors.log
error_log = /var/log/php-errors.log

I also have log_errors = on

I created the log file in /var/log/ and it is CHMOD 644. I also turned on Error reporting E_ALL

cat /etc/php.ini | grep error_reporting
; error_reporting

error_reporting = E_ALL
; Eval the expression with current error_reporting().  Set to true if you want
; error_reporting(0) around the eval().

Then I restarted the httpd daemon. When I add a file via the WordPress uploader I see it is not uploaded because of a permission issue

“cannot-open-file.png” has failed to upload due to an error
Unable to create directory wp-content/uploads/2014/05. Is its parent directory writable by the server?

, but it is not stored as an error in php-errors.php:

pwd
/var/log

ls -l | grep php
-rw-r--r-- 1 root  root        0 May  6 06:21 php-errors.log

All my other logs in /var/log/httpd are also root:root so I would assume the logging would work. And when I did adjust the file's permissions to apache:apache as suggested I still had no errors in the log file. Even adding error logging on to the .htaccess did not help.

I also checked the PHP.ini using phpinfo() . The only ini loaded is the one I adjusted in /etc/php.ini and the user and group it is using is apache - User/Group apache(48)/48 . What am I missing?

PS Could be issues with the directory for the log files as suggested here Can't configure PHP error log I am checking out more info on this.

Answer

Apparently I also needed display_errors = on . I thought this was for error display onscreen but it is for error logging as well it seems.