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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 |
|---|---|
| 767 | */ |
| 768 | function validate_current_theme() { |
| 769 | /** |
| 770 | * Filter whether to validate the current theme. |
| 771 | * |
| 772 | * @since 2.7.0 |
| 773 | * |
| 774 | * @param bool true Validation flag to check the current theme. |
| 775 | */ |
| 776 | if ( wp_installing() || ! apply_filters( 'validate_current_theme', true ) ) |
| 777 | return true; |
| 778 | |
| 779 | if ( ! file_exists( get_template_directory() . '/index.php' ) ) { |
| 780 | // Invalid. |
| 781 | } elseif ( ! file_exists( get_template_directory() . '/style.css' ) ) { |
| 782 | // Invalid. |
| 783 | } elseif ( is_child_theme() && ! file_exists( get_stylesheet_directory() . '/style.css' ) ) { |
| 784 | // Invalid. |
| 785 | } else { |