_wp_timezone_choice_usort_callback

Sort-helper for timezones.

Description

(int) _wp_timezone_choice_usort_callback( (array) $a, (array) $b ); 

Returns (int)

Parameters (2)

0. $a (array)
The a.
1. $b (array)
The b.

Usage

  1. if ( !function_exists( '_wp_timezone_choice_usort_callback' ) ) { 
  2.     require_once ABSPATH . WPINC . '/functions.php'; 
  3. } 
  4.   
  5. // The a. 
  6. $a = array(); 
  7.   
  8. // The b. 
  9. $b = array(); 
  10.   
  11. // NOTICE! Understand what this does before running. 
  12. $result = _wp_timezone_choice_usort_callback($a, $b); 
  13.     

Defined (1)

The function is defined in the following location(s).

/wp-includes/functions.php  
  1. function _wp_timezone_choice_usort_callback( $a, $b ) { 
  2.     // Don't use translated versions of Etc 
  3.     if ( 'Etc' === $a['continent'] && 'Etc' === $b['continent'] ) { 
  4.         // Make the order of these more like the old dropdown 
  5.         if ( 'GMT+' === substr( $a['city'], 0, 4 ) && 'GMT+' === substr( $b['city'], 0, 4 ) ) { 
  6.             return -1 * ( strnatcasecmp( $a['city'], $b['city'] ) ); 
  7.         } 
  8.         if ( 'UTC' === $a['city'] ) { 
  9.             if ( 'GMT+' === substr( $b['city'], 0, 4 ) ) { 
  10.                 return 1; 
  11.             } 
  12.             return -1; 
  13.         } 
  14.         if ( 'UTC' === $b['city'] ) { 
  15.             if ( 'GMT+' === substr( $a['city'], 0, 4 ) ) { 
  16.                 return -1; 
  17.             } 
  18.             return 1; 
  19.         } 
  20.         return strnatcasecmp( $a['city'], $b['city'] ); 
  21.     } 
  22.     if ( $a['t_continent'] == $b['t_continent'] ) { 
  23.         if ( $a['t_city'] == $b['t_city'] ) { 
  24.             return strnatcasecmp( $a['t_subcity'], $b['t_subcity'] ); 
  25.         } 
  26.         return strnatcasecmp( $a['t_city'], $b['t_city'] ); 
  27.     } else { 
  28.         // Force Etc to the bottom of the list 
  29.         if ( 'Etc' === $a['continent'] ) { 
  30.             return 1; 
  31.         } 
  32.         if ( 'Etc' === $b['continent'] ) { 
  33.             return -1; 
  34.         } 
  35.         return strnatcasecmp( $a['t_continent'], $b['t_continent'] ); 
  36.     } 
  37. }