Wordpress Error Reporting. Source: http://wordpress.org/support/topic/how-to-set-a-php-error-log-file-for-wp || http://digwp.com/2009/07/monitor-php-errors-wordpress/

error_reporting.php

<?php

define('WP_DEBUG', false);

@ini_set('log_errors', 1);
@ini_set('display_errors', 0); /* enable or disable public display of errors (use 'On' or 'Off') */
@ini_set('error_log', dirname(__FILE__) . '/wp-content/logs/php-errors.log'); /* path to server-writable log file */
@ini_set( 'error_reporting', E_ALL ^ E_NOTICE ); /* the php parser to  all errors, excreportept notices.  */

?>