wp-admin/includes/ms.php:255Displays the amount of disk space used by the current site. Not used in core.
function display_space_usage() { $space_allowed = get_space_allowed(); $space_used = get_space_used(); $percent_used = ( $space_used / $space_allowed ) * 100; $space = size_format( $space_allowed * MB_IN_BYTES ); ?> <strong> <?php /* translators: Storage space that's been used. 1: Percentage of used space, 2: Total space allowed in megabytes or gigabytes. */ printf( __( 'Used: %1$s%% of %2$s' ), number_format( $percent_used ), $space ); ?> </strong> <?php}Introduced in MU (3.0.0). Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-admin/includes/ms.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.