is_child_theme(): bool

Whether a child theme is in use.

Return

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

File: wp-includes/theme.php. View all references

function is_child_theme() {
	return get_template_directory() !== get_stylesheet_directory();
}

Uses
Uses	Description
get_template_directory() wp-includes/theme.php	Retrieves template directory path for the active theme.
get_stylesheet_directory() wp-includes/theme.php	Retrieves stylesheet directory path for the active theme.

Used By
Used By	Description
get_block_asset_url() wp-includes/blocks.php	Gets the URL to a block asset.
WP_Site_Health::get_test_theme_version() wp-admin/includes/class-wp-site-health.php	Tests if themes are outdated, or unnecessary.
WP_Customize_Manager::prepare_starter_content_attachments() wp-includes/class-wp-customize-manager.php	Prepares starter content attachments.
get_editor_stylesheets() wp-includes/theme.php	Retrieves any registered editor stylesheet URLs.
validate_current_theme() wp-includes/theme.php	Checks that the active theme has the required files.

Changelog
Version	Description
3.0.0	Introduced.

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