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Old 27-04-16, 15:57
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Phogo Phogo is offline
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Join Date: Jan 2008
United Kingdom
Posts: 896
Default PHP Error logging
Find out path to php.ini

The default paths are as follows for popular unix like system:
  • CentOS Linux/RHEL v5.x/6.x/7.x : /etc/php.ini
  • Ubuntu / Debian Linux (PHP 7 fpm) : /etc/php/7.0/fpm/php.ini
  • Ubuntu / Debian Linux (PHP 5.6 fpm) : /etc/php/5.6/fpm/php.ini
  • Ubuntu / Debian Linux (PHP 7 with Apache 2) : /etc/php/5.6/apache2/php.ini
  • Ubuntu / Debian Linux (PHP 5.6 with Apache 2) : /etc/php/7/apache2/php.ini
  • FreeBSD unix server v9.x/10.x+: /usr/local/etc/php.ini
You can use the following command to find out path to php.ini:
# php5-cgi -i | grep php.ini

How do I log all php errors to a log fiie?

Just add following line to /etc/php.ini to log errors to specified file, say /var/log/php-scripts.log or /var/log/httpd/php-error.log:
# vi /etc/php.ini

Find and modify the error_log directive as follows:
error_log = /var/log/php-scripts.log

Make sure display_errors set to Off (no errors to end users):
display_errors = Off
Save and close the file.

Restart web server or php7-fpm service:
# /etc/init.d/httpd restart
OR
# systemctl restart httpd.service
OR
# restart php7.0-fpm

How do I see logs?

Login using ssh or download a log file /var/log/php-scripts.log using sftp client:
$ sudo tail -f /var/log/php-scripts.log

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With .htaccess file

# enable PHP error logging
php_value error_reporting VALUE
php_flag log_errors on
php_value error_log FULL/PATH/php_error_your_domain.log

VALUE
The value used defines the level or error reporting you require, for example:
  • -1 = ALL errors, not recommended but can be useful when used sparingly.
  • 30719 = Same as E_ALL, less info than -1
  • 30711 = E_ALL but not E_NOTICE
  • 30709 = E_ALL but not E_NOTICE or E_WARNING
  • 22517 = E_ALL but not E_NOTICE or E_WARNING or E_DEPRECATED
Create the php_error_your_domain.log file.

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