do_action( 'after_switch_theme', string $old_name, WP_Theme $old_theme )

Fires on the first WP load after a theme switch if the old theme still exists.


Description

This action fires multiple times and the parameters differs according to the context, if the old theme exists or not. If the old theme is missing, the parameter will be the slug of the old theme.


Parameters

$old_name

Old theme name.

$old_theme

WP_Theme instance of the old theme.


Source

File: wp-includes/theme.php

View on GitHub



Changelog

Changelog
Version Description
WP-3.3.0 Introduced.