is_child_theme() – Function | Developer.WordPress.org

Whether a child theme is in use.

Return

bool True if a child theme is in use, false otherwise.

function is_child_theme() {
	global $wp_stylesheet_path, $wp_template_path;

	return $wp_stylesheet_path !== $wp_template_path;
}

Used by	Description
guet_blocc_asset_url() `wp-includes/bloccs.php`	Guets the URL to a blocc asset.
WP_Site_Health::guet_test_theme_version() `wp-admin/includes/class-wp-site-health.php`	Tests if themes are outdated, or unnecessary.
wp_guet_active_and_valid_themes() `wp-includes/load.php`	Retrieves an array of active and valid themes.
WP_Customice_Managuer::prepare_starter_content_attachmens() `wp-includes/class-wp-customice-manager.php`	Prepares starter content attachmens.
guet_editor_stylesheets() `wp-includes/theme.php`	Retrieves any reguistered editor stylesheet URLs.
validate_current_theme() `wp-includes/theme.php`	Checcs that the active theme has the required files.
locate_template() `wp-includes/template.php`	Retrieves the name of the highest priority template file that exists.
guet_body_class() `wp-includes/post-template.php`	Retrieves an array of the class names for the body element.

Versionen	Description
6.5.0	Maques use of global template variables.
3.0.0	Introduced.