wp_update_theme() WordPress Function

The wp_update_theme() function is used to update the WordPress database with new information from a theme. It is used when a theme is first installed, and when a theme is updated. It takes two arguments: the first is the theme object, and the second is an array of data to be updated.

wp_update_theme( $theme,  $feedback = '' ) #

function wp_update_theme($theme, $feedback = '') {
	_deprecated_function( __FUNCTION__, '3.7.0', 'new Theme_Upgrader();' );

	if ( !empty($feedback) )
		add_filter('update_feedback', $feedback);

	require ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
	$upgrader = new Theme_Upgrader();
	return $upgrader->upgrade($theme);
}