Steve Taylor

t1gr0u

The plugin allows to display PHP errors on the dashboard in a widget.
I’ve wrap Gyrus’s code into a plugin, you can see the original code here: 
http://sltaylor.co.uk/blog/wordpress-dashboard-widget-php-errors-log/

PHP Errors Widget

Reiji Sato

Manage WordPress log files independently of WP_DEBUG mode. 
You can specify the output directory and file name, download log files, and delete them as needed.
By specifying a date format in the file name, you can split logs daily or monthly.

WP Output Log File

Manage log files with custom directory and filename. Download and delete logs regardless of WP_DEBUG.

PHP Errors Widget vs WP Output Log File