error log wordpress

1//You can enable WordPress logging adding this to wp-config.php file
2// Enable WP_DEBUG mode
3define( 'WP_DEBUG', true );
4
5// Enable Debug logging to the /wp-content/debug.log file
6define( 'WP_DEBUG_LOG', true );

1error_log( print_r( 'Hello World!', true ) );

1error_log( 'Hello World!' );

11
2define( 'WP_DEBUG', true );