Action hook 'after_switch_theme'

Hook Information

Hook Parameters

Usage Examples

<?php
// Hook into after_switch_theme
add_action('after_switch_theme', 'my_custom_function', 10, 2);

function my_custom_function($old_name, $old_theme) {
    // Your custom code here
}

Source Code Context

<?php
3502  			 * @param WP_Theme $old_theme WP_Theme instance of the old theme.
3503  			 */
3504  			do_action( 'after_switch_theme', $old_theme->get( 'Name' ), $old_theme );
3505  		} else {
3506  			/** This action is documented in wp-includes/theme.php */
3507  			do_action( 'after_switch_theme', $stylesheet, $old_theme );
3508  		}
3509  
3510  		flush_rewrite_rules();
3511  
3512  		update_option( 'theme_switched', false );

PHP Documentation

<?php
/**
			 * Fires on the next WP load after the theme has been switched.
			 *
			 * The parameters differ according to whether the old theme exists or not.
			 * If the old theme is missing, the old name will instead be the slug
			 * of the old theme.
			 *
			 * See {@see 'switch_theme'}.
			 *
			 * @since 3.3.0
			 *
			 * @param string   $old_name  Old theme name.
			 * @param WP_Theme $old_theme WP_Theme instance of the old theme.
			 */