wp-includes/functions.php:6702Sort-helper for timezones.
$aarray$barrayintfunction _wp_timezone_choice_usort_callback( $a, $b ) { // Don't use translated versions of Etc. if ( 'Etc' === $a['continent'] && 'Etc' === $b['continent'] ) { // Make the order of these more like the old dropdown. if ( str_starts_with( $a['city'], 'GMT+' ) && str_starts_with( $b['city'], 'GMT+' ) ) { return -1 * ( strnatcasecmp( $a['city'], $b['city'] ) ); } if ( 'UTC' === $a['city'] ) { if ( str_starts_with( $b['city'], 'GMT+' ) ) { return 1; } return -1; } if ( 'UTC' === $b['city'] ) { if ( str_starts_with( $a['city'], 'GMT+' ) ) { return -1; } return 1; } return strnatcasecmp( $a['city'], $b['city'] ); } if ( $a['t_continent'] === $b['t_continent'] ) { if ( $a['t_city'] === $b['t_city'] ) { return strnatcasecmp( $a['t_subcity'], $b['t_subcity'] ); } return strnatcasecmp( $a['t_city'], $b['t_city'] ); } else { // Force Etc to the bottom of the list. if ( 'Etc' === $a['continent'] ) { return 1; } if ( 'Etc' === $b['continent'] ) { return -1; } return strnatcasecmp( $a['t_continent'], $b['t_continent'] ); }}Introduced in 2.9.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/functions.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.