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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 |
---|---|
809 | */ |
810 | function validate_current_theme() { |
811 | /** |
812 | * Filters whether to validate the current theme. |
813 | * |
814 | * @since 2.7.0 |
815 | * |
816 | * @param bool $validate Whether to validate the current theme. Default true. |
817 | */ |
818 | if ( wp_installing() || ! apply_filters( 'validate_current_theme', true ) ) { |
819 | return true; |
820 | } |
821 |
|
822 | if ( ! file_exists( get_template_directory() . '/index.php' ) ) { |
823 | // Invalid. |
824 | } elseif ( ! file_exists( get_template_directory() . '/style.css' ) ) { |
825 | // Invalid. |
826 | } elseif ( is_child_theme() && ! file_exists( get_stylesheet_directory() . '/style.css' ) ) { |
827 | // Invalid. |