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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 |
---|---|
839 | */ |
840 | function validate_current_theme() { |
841 | /** |
842 | * Filter whether to validate the current theme. |
843 | * |
844 | * @since 2.7.0 |
845 | * |
846 | * @param bool true Validation flag to check the current theme. |
847 | */ |
848 | if ( defined('WP_INSTALLING') || ! apply_filters( 'validate_current_theme', true ) ) |
849 | return true; |
850 |
|
851 | if ( get_template() != WP_DEFAULT_THEME && !file_exists(get_template_directory() . '/index.php') ) { |
852 | switch_theme( WP_DEFAULT_THEME ); |
853 | return false; |
854 | } |
855 |
|
856 | if ( get_stylesheet() != WP_DEFAULT_THEME && !file_exists(get_template_directory() . '/style.css') ) { |
857 | switch_theme( WP_DEFAULT_THEME ); |