wp_should_replace_insecure_home_url() WordPress Function

function wp_should_replace_insecure_home_url() {
	$should_replace_insecure_home_url = wp_is_using_https()
		&& get_option( 'https_migration_required' )
		// For automatic replacement, both 'home' and 'siteurl' need to not only use HTTPS, they also need to be using
		// the same domain.
		&& wp_parse_url( home_url(), PHP_URL_HOST ) === wp_parse_url( site_url(), PHP_URL_HOST );

	/**
	 * Filters whether WordPress should replace old HTTP URLs to the site with their HTTPS counterpart.
	 *
	 * If a WordPress site had its URL changed from HTTP to HTTPS, by default this will return `true`. This filter can
	 * be used to disable that behavior, e.g. after having replaced URLs manually in the database.
	 *
	 * @since 5.7.0
	 *
	 * @param bool $should_replace_insecure_home_url Whether insecure HTTP URLs to the site should be replaced.
	 */
	return apply_filters( 'wp_should_replace_insecure_home_url', $should_replace_insecure_home_url );
}
Uses	Description
wp-includes/https-detection.php:wp_is_using_https()	Checks whether the website is using HTTPS.
wp-includes/https-migration.php:wp_should_replace_insecure_home_url	Filters whether WordPress should replace old HTTP URLs to the site with their HTTPS counterpart.
wp-includes/http.php:wp_parse_url()	A wrapper for PHP’s parse_url() function that handles consistency in the return values across PHP versions.
wp-includes/link-template.php:home_url()	Retrieves the URL for the current site where the front end is accessible.
wp-includes/link-template.php:site_url()	Retrieves the URL for the current site where WordPress application files (e.g. wp-blog-header.php or the wp-admin/ folder) are accessible.
wp-includes/plugin.php:apply_filters()	Calls the callback functions that have been added to a filter hook.
wp-includes/option.php:get_option()	Retrieves an option value based on an option name.