WordPress Error Logging

define('WP_DEBUG', true);
define('WP_DEBUG_DISPLAY', false);
ini_set('log_errors',TRUE);
ini_set('error_reporting', E_ALL);
ini_set('error_log', dirname(__FILE__) . '/error-logs/php.log');

if (!file_exists(dirname(__FILE__) . '/error-logs') && is_writable(dirname(__FILE__))) {
    mkdir(dirname(__FILE__) . '/error-logs');
}

if (file_exists(dirname(__FILE__) . '/error-logs') && !file_exists(dirname(__FILE__) . '/error-logs/.htaccess')) {
    file_put_contents(dirname(__FILE__) . '/error-logs/.htaccess', "AuthType Basic\nAuthName \"Restricted Access\"\nAuthUserFile .htnopasswd\nAuthGroupFile /dev/null\nRequire valid-user");
}