wpsc_known_headers │ filter-hook │ WPSCache 1.0

Usage

add_filter( 'wpsc_known_headers', 'wp_kama_wpsc_known_headers_filter' );

/**
 * Function for `wpsc_known_headers` filter-hook.
 * 
 * @param  $known_headers 
 *
 * @return 
 */
function wp_kama_wpsc_known_headers_filter( $known_headers ){

	// filter...
	return $known_headers;
}

$known_headers

-

Where the hook is called

$known_headers = apply_filters( 'wpsc_known_headers', $known_headers );

Where the hook is used in WP Super Cache