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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 3439 | * of the old theme. |
| 3440 | * |
| 3441 | * See {@see 'switch_theme'}. |
| 3442 | * |
| 3443 | * @since 3.3.0 |
| 3444 | * |
| 3445 | * @param string $old_name Old theme name. |
| 3446 | * @param WP_Theme $old_theme WP_Theme instance of the old theme. |
| 3447 | */ |
| 3448 | do_action( 'after_switch_theme', $old_theme->get( 'Name' ), $old_theme ); |
| 3449 | } else { |
| 3450 | /** This action is documented in wp-includes/theme.php */ |
| 3451 | do_action( 'after_switch_theme', $stylesheet, $old_theme ); |
| 3452 | } |
| 3453 | |
| 3454 | flush_rewrite_rules(); |
| 3455 | |
| 3456 | update_option( 'theme_switched', false ); |
| 3457 | } |
| 3458 | } |
| 3459 | |
| 3460 | /** |