WordPress at a glance
filter is not described

site_details filter-hook . WP 4.6.0

Filters a site's extended properties.

Usage

add_filter( 'site_details', 'filter_function_name_1797' );
function filter_function_name_1797( $details ){
	// filter...

	return $details;
}
$details(stdClass)
The site details.

Where the hook is called

WP_Site::get_details()
site_details
wp-includes/class-wp-site.php 343
$details = apply_filters( 'site_details', $details );

Where the hook is used (in WP core)

Does not used.