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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.
| Line | Code |
|---|---|
| 847 | */ |
| 848 | function validate_current_theme() { |
| 849 | /** |
| 850 | * Filters whether to validate the current theme. |
| 851 | * |
| 852 | * @since 2.7.0 |
| 853 | * |
| 854 | * @param bool $validate Whether to validate the current theme. Default true. |
| 855 | */ |
| 856 | if ( wp_installing() || ! apply_filters( 'validate_current_theme', true ) ) { |
| 857 | return true; |
| 858 | } |
| 859 | |
| 860 | if ( ! file_exists( get_template_directory() . '/index.php' ) ) { |
| 861 | // Invalid. |
| 862 | } elseif ( ! file_exists( get_template_directory() . '/style.css' ) ) { |
| 863 | // Invalid. |
| 864 | } elseif ( is_child_theme() && ! file_exists( get_stylesheet_directory() . '/style.css' ) ) { |
| 865 | // Invalid. |