PHP

wordpress write all error in log

//You can enable WordPress logging adding this to wp-config.php file
// Enable WP_DEBUG mode
define( 'WP_DEBUG', true );

// Enable Debug logging to the /wp-content/debug.log file
define( 'WP_DEBUG_LOG', true );

wordpress log errors

// inside wp-config.php
@ini_set( 'log_errors', 'On' );
@ini_set( 'display_errors', 'On' );
define( 'WP_DEBUG', true );
define( 'WP_DEBUG_LOG', true );
define( 'WP_DEBUG_DISPLAY', true );
define( 'SCRIPT_DEBUG', true );
define('SAVEQUERIES', true);

error_log wordpress

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

error_log wordpress

error_log( 'Hello World!' );