how to change the site and home url in wordpress using wp-config code example

Example 1: wordpress change site address

// Add to top of wp-config.php
define( 'WP_HOME', 'http://example.com' );
define( 'WP_SITEURL', 'http://example.com' );

Example 2: change site url wordpress database

options table
1. siteurl
2. home

######## OR ########

// Add to top of wp-config.php
define( 'WP_HOME', 'http://example.com' );
define( 'WP_SITEURL', 'http://example.com' );