wordpress log errors

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 ) );

1// inside wp-config.php
2@ini_set( 'log_errors', 'On' );
3@ini_set( 'display_errors', 'On' );
4define( 'WP_DEBUG', true );
5define( 'WP_DEBUG_LOG', true );
6define( 'WP_DEBUG_DISPLAY', true );
7define( 'SCRIPT_DEBUG', true );
8define('SAVEQUERIES', true);

1error_log( 'Hello World!' );