WordPress at a glance
filter is not described

wpsc_protected_directories filter-hook . WPSCache 1.0

Usage

add_filter( 'wpsc_protected_directories', 'filter_function_name_9738' );
function filter_function_name_9738( $array ){
	// filter...

	return $array;
}
$array
-

Where the hook is called

wpsc_get_protected_directories()
wpsc_protected_directories
wp-super-cache/wp-cache-phase2.php 1002-1011
return apply_filters( 'wpsc_protected_directories', array(
								$cache_path . '.htaccess',
								$cache_path . "index.html",
								$blog_cache_dir,
								$blog_cache_dir . "index.html",
								$blog_cache_dir . 'meta',
								$blog_cache_dir . 'meta/index.html',
								$cache_path . 'supercache/index.html',
								$cache_path . 'supercache' )
							);

Where in WP core the hook is used WP Super Cache

Usage not found.