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