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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 |
|---|---|
| 814 | */ |
| 815 | function validate_current_theme() { |
| 816 | /** |
| 817 | * Filter whether to validate the current theme. |
| 818 | * |
| 819 | * @since 2.7.0 |
| 820 | * |
| 821 | * @param bool true Validation flag to check the current theme. |
| 822 | */ |
| 823 | if ( defined('WP_INSTALLING') || ! apply_filters( 'validate_current_theme', true ) ) |
| 824 | return true; |
| 825 | |
| 826 | if ( get_template() != WP_DEFAULT_THEME && !file_exists(get_template_directory() . '/index.php') ) { |
| 827 | switch_theme( WP_DEFAULT_THEME ); |
| 828 | return false; |
| 829 | } |
| 830 | |
| 831 | if ( get_stylesheet() != WP_DEFAULT_THEME && !file_exists(get_template_directory() . '/style.css') ) { |
| 832 | switch_theme( WP_DEFAULT_THEME ); |