Code examples used in https://youtu.be/cUeV3S7NGcU

gistfile1.txt

Code examples used in https://youtu.be/cUeV3S7NGcU


# How to specify your error_log file

ini_set( "error_log", "/home/user/error_log.txt" );


---


# How to hook into pre_update_option_{$option}

/*
 * Log to our error log when Total Upkeep settings are updated.
 *
 * @param mixed  $value     The new, unserialized option value.
 * @param mixed  $old_value The old option value.
 * @param string $option    Option name.
 */
add_filter( 'pre_update_option_boldgrid_backup_settings', function( $value, $old_value, $option ) {
	$e = new \Exception();
	$e = explode( "\n", $e->getTraceAsString() );

	error_log( print_r( array(
		'Message:'                    => 'Total Upkeep settings have been updated.',
		'Old value for ftp retention:' => empty( $old_value['remote']['ftp']['retention_count'] ) ? 'empty' : $old_value['remote']['ftp']['retention_count'],
		'New value for ftp retention:' => empty( $value['remote']['ftp']['retention_count'] ) ? 'empty' : $value['remote']['ftp']['retention_count'],
		'Trace:'                       => $e,
	),1));

	return $value;
}, 10, 3 );