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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 |
|---|---|
| 593 | $theme_loc = 'wp-content/themes'; |
| 594 | $theme_root = ABSPATH . $theme_loc; |
| 595 | |
| 596 | $template = get_settings('template'); |
| 597 | $stylesheet = get_settings('stylesheet'); |
| 598 | |
| 599 | if (($template != 'default') && (! file_exists("$theme_root/$template/index.php"))) { |
| 600 | update_option('template', 'default'); |
| 601 | update_option('stylesheet', 'default'); |
| 602 | do_action('switch_theme', 'Default'); |
| 603 | return false; |
| 604 | } |
| 605 | |
| 606 | if (($stylesheet != 'default') && (! file_exists("$theme_root/$stylesheet/style.css"))) { |
| 607 | update_option('template', 'default'); |
| 608 | update_option('stylesheet', 'default'); |
| 609 | do_action('switch_theme', 'Default'); |
| 610 | return false; |
| 611 | } |
| 612 | |
| 613 | return true; |
| 614 | } |
| 615 | |
| 616 | function get_broken_themes() { |
| 617 | global $wp_broken_themes; |
| 618 | |