<?php

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/**

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* List of functions to get timezone lists

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*

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* @author : Premio <contact@premio.io>

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* @license : GPL2

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* */

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if (defined('ABSPATH') === false) {

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exit;

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}

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if (!function_exists('chaty_timezone_choice')) {

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/**

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* Generates the HTML structure for selecting a timezone.

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*

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* @param string $selectedZone The selected timezone value.

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* @param bool $utc Whether to include UTC offsets or not.

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*

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* @return string The HTML structure for the timezone selection.

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*/

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function chaty_timezone_choice($selectedZone='', $utc=true)

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{

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$countryName = json_decode(chaty_country_city_name(), true);

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$continents = [

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'Africa',

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'America',

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'Antarctica',

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'Arctic',

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'Asia',

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'Atlantic',

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'Australia',

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'Europe',

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'Indian',

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'Pacific',

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];

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$zonen = [];

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foreach (timezone_identifiers_list() as $zone) {

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$zone = explode('/', $zone);

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if (! in_array($zone[0], $continents, true)) {

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continue;

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}

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// This determines what gets set and translated - we don't translate Etc/* strings here, they are done later.

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$exists = [

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0 => ( isset($zone[0]) && $zone[0] ),

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1 => ( isset($zone[1]) && $zone[1] ),

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2 => ( isset($zone[2]) && $zone[2] ),

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];

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$exists[3] = ( $exists[0] && 'Etc' !== $zone[0] );

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$exists[4] = ( $exists[1] && $exists[3] );

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$exists[5] = ( $exists[2] && $exists[3] );

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// phpcs:disable WordPress.WP.I18n.LowLevelTranslationFunction,WordPress.WP.I18n.NonSingularStringLiteralText

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$zonen[] = [

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'continent' => ( $exists[0] ? $zone[0] : '' ),

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'city' => ( $exists[1] ? $zone[1] : '' ),

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'subcity' => ( $exists[2] ? $zone[2] : '' ),

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't_continent' => ( $exists[3] ? str_replace('_', ' ', $zone[0]) : '' ),

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't_city' => ( $exists[4] ? str_replace('_', ' ', $zone[1]) : '' ),

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't_subcity' => ( $exists[5] ? str_replace('_', ' ', $zone[2]) : '' ),

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];

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// phpcs:enable

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}//end foreach

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usort($zonen, '_chaty_timezone_sort');

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$structure = [];

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if (empty($selectedZone)) {

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$structure[] = '<option selected="selected" value="">Select a city or country</option>';

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}

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foreach ($zonen as $key => $zone) {

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// Build value in an array to join later.

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$value = [ $zone['continent'] ];

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$display = '';

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if (isset($countryName[$zone['city']]) && $countryName[$zone['city']] != '') {

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$display .= $countryName[$zone['city']]."/";

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}

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if (empty($zone['city'])) {

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// It's at the continent level (generally won't happen).

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$display .= $zone['t_continent'];

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} else {

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// It's inside a continent group.

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// Continent optgroup.

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if (! isset($zonen[($key - 1)]) || $zonen[($key - 1)]['continent'] !== $zone['continent']) {

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$label = $zone['t_continent'];

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$structure[] = '<optgroup label="'.$label.'">';

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}

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// Add the city to the value.

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$value[] = $zone['city'];

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$display .= $zone['t_city'];

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if (! empty($zone['subcity'])) {

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// Add the subcity to the value.

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$value[] = $zone['subcity'];

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$display .= ' - '.$zone['t_subcity'];

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}

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}//end if

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// Build the value.

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$value = join('/', $value);

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$selected = '';

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if ($value === $selectedZone) {

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$selected = 'selected="selected" ';

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}

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$structure[] = '<option '.$selected.'value="'.$value.'">'.$display.'</option>';

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// Close continent optgroup.

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if (! empty($zone['city']) && ( ! isset($zonen[($key + 1)]) || ( isset($zonen[($key + 1)]) && $zonen[($key + 1)]['continent'] !== $zone['continent'] ) )) {

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$structure[] = '</optgroup>';

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}

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}//end foreach

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// Do UTC.

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$structure[] = '<optgroup label="UTC">';

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$selected = '';

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if ('UTC' === $selectedZone) {

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$selected = 'selected="selected" ';

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}

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$structure[] = '<option '.$selected.'value="UTC">UTC</option>';

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$structure[] = '</optgroup>';

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// Do manual UTC offsets.

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$structure[] = '<optgroup label="Manual Offsets">';

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$offsetRange = [

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-12,

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-11.5,

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-11,

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-10.5,

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-10,

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-9.5,

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-9,

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-8.5,

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-8,

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-7.5,

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-7,

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-6.5,

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-6,

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-5.5,

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-5,

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-4.5,

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-4,

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-3.5,

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-3,

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-2.5,

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-2,

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-1.5,

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-1,

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-0.5,

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0,

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0.5,

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1,

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1.5,

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2,

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2.5,

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3,

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3.5,

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4,

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4.5,

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5,

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5.5,

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5.75,

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6,

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6.5,

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7,

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7.5,

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8,

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8.5,

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8.75,

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9,

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9.5,

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10,

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10.5,

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11,

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11.5,

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12,

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12.75,

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13,

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13.75,

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14,

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];

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foreach ($offsetRange as $offset) {

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if (0 <= $offset) {

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$offsetName = ($utc ) ? '+'.$offset : $offset;

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} else {

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$offsetName = (string) $offset;

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}

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$offsetValue = $offsetName;

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$offsetName = str_replace([ '.25', '.5', '.75' ], [ ':15', ':30', ':45' ], $offsetName);

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if ($offset >= 0 && !$utc) {

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$offsetName = 'UTC+'.$offsetName;

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} else {

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$offsetName = 'UTC'.$offsetName;

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}

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$offsetValue = ($utc ) ? 'UTC'.$offsetValue : $offsetValue ;

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$selected = '';

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if ($offsetValue === $selectedZone) {

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$selected = 'selected="selected" ';

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}

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$structure[] = '<option '.$selected.'value="'.$offsetValue.'">'.$offsetName.'</option>';

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}//end foreach

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$structure[] = '</optgroup>';

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return join("\n", $structure);

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}//end chaty_timezone_choice()

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}//end if

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if (!function_exists('_chaty_timezone_sort')) {

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/**

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* Sorts timezones based on specific criteria.

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*

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* @param array $a The first timezone to compare.

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* @param array $b The second timezone to compare.

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* @return int Returns a negative value if $a should be sorted before $b,

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* a positive value if $a should be sorted after $b,

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* or 0 if $a and $b are equal in terms of sorting.

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*/

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function _chaty_timezone_sort($a, $b)

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{

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// Don't use translated versions of Etc.

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if ($a['continent'] === 'Etc' && $b['continent'] === 'Etc') {

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// Make the order of these more like the old dropdown.

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if (substr($a['city'] === 'GMT+', 0, 4) && substr($b['city'] === 'GMT+', 0, 4)) {

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return (-1 * ( strnatcasecmp($a['city'], $b['city']) ));

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}

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if ($a['city'] === 'UTC') {

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if (substr($b['city'], 0, 4) === 'GMT+') {

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return 1;

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}

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return -1;

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}

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if ($b['city'] === 'UTC') {

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if (substr($a['city'], 0, 4) === 'GMT+') {

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return -1;

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}

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return 1;

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}

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return strnatcasecmp($a['city'], $b['city']);

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}//end if

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if ($a['t_continent'] == $b['t_continent']) {

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if ($a['t_city'] == $b['t_city']) {

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return strnatcasecmp($a['t_subcity'], $b['t_subcity']);

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}

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return strnatcasecmp($a['t_city'], $b['t_city']);

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} else {

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// Force Etc to the bottom of the list.

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if ($a['continent'] === 'Etc') {

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return 1;

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}

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if ($b['continent'] === 'Etc') {

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return -1;

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}

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return strnatcasecmp($a['t_continent'], $b['t_continent']);

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}

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}//end _chaty_timezone_sort()

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}//end if

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if (!function_exists('chaty_country_city_name')) {

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/**

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* Returns a JSON string representing an array of country-city pairs.

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*

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* @return string Returns a JSON string containing country-city pairs. The keys of the array are city names, and the values are country names.

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*/

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function chaty_country_city_name()

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{

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return '{"Abidjan":"Ivory Coast","Accra":"Ghana","Addis Ababa":"Ethiopia","Algiers":"Algeria","Asmara":"Eritrea","Bamako":"Mali","Bangui":"Central African Republic","Banjul":"Gambia","Bissau":"Guinea-Bissau","Blantyre":"Malawi","Brazzaville":"Republic of the Congo","Bujumbura":"Burundi","Cairo":"Egypt","Casablanca":"Morocco","Ceuta":"Spain","Conakry":"Guinea","Dakar":"Senegal","Dar es Salaam":"Tanzania","Djibouti":"Djibouti","Douala":"Cameroon","Freetown":"Sierra Leone","Gaborone":"Botswana","Harare":"Zimbabwe","Johannesburg":"South Africa","Juba":"South Sudan","Kampala":"Uganda","Khartoum":"Sudan","Kigali":"Rwanda","Kinshasa":"Congo","Lagos":"Nigeria","Libreville":"Gabon","Lome":"Togo","Luanda":"Angola","Lubumbashi":"Congo","Lusaka":"Zambia","Malabo":"Equatorial Guinea","Maputo":"Mozambique","Maseru":"Lesotho","Mbabane":"Swaziland","Mogadishu":"Somalia","Monrovia":"Liberia","Nairobi":"Kenya","Niamey":"Niger","Nouakchott":"Mauritania","Ouagadougou":"Burkina Faso","Sao Tome":"Brazil","Tripoli":"Libya","Tunis":"Tunisia","Windhoek":"Namibia","Adak":"United States","Anchorage":"United States","Anguilla":"United States","Antigua":"Spain","Asuncion":"Paraguay","Atikokan":"Canada","Belem":"Brazil","Boa Vista":"Brazil","Bogota":"United States","Boise":"United States","Cambridge Bay":"Canada","Campo Grande":"Brazil","Caracas":"Venezuela","Chicago":"Mexico","Chihuahua":"Mexico","Creston":"Canada","Cuiaba":"Brazil","Dawson":"Australia","Dawson Creek":"Canada","Denver":"United States","Detroit":"United States","Dominica":"Dominican Republic","Edmonton":"Canada","El Salvador":"Guatemala","Fort Nelson":"Canada","Fortaleza":"Brazil","Glace Bay":"Canada","Grenada":"United States","Guayaquil":"Ecuador","Halifax":"Canada","Havana":"Cuba","Hermosillo":"Mexico","Indiana":"United States","Inuvik":"Canada","Iqaluit":"Canada","Jamaica":"United States","Juneau":"United States","Kralendijk":"Bonaire","La Paz":"Uruguay","Lima":"Argentina","Los Angeles":"Panama","Managua":"Nicaragua","Manaus":"Brazil","Marigot":"Dominica","Mazatlan":"Mexico","Menominee":"United States","Metlakatla":"United States","Mexico City":"Mexico","Moncton":"Canada","Monterrey":"Mexico","Montevideo":"Uruguay","Montserrat":"Argentina","Nassau":"Bahamas","New York":"United States","Nipigon":"Canada","Nome":"United States","Ojinaga":"Mexico","Panama":"United States","Paramaribo":"Suriname","Phoenix":"South Africa","Port-au-Prince":"Haiti","Port of Spain":"Trinidad and Tobago","Porto Velho":"Brazil","Puerto Rico":"Argentina","Punta Arenas":"Chile","Rankin Inlet":"Canada","Recife":"Brazil","Regina":"Canada","Rio Branco":"Brazil","Santiago":"Peru","Santo Domingo":"Costa Rica","Sao Paulo":"Brazil","Sitka":"United States","Swift Current":"Canada","Tegucigalpa":"Honduras","Thunder Bay":"Canada","Tijuana":"Mexico","Toronto":"Canada","Tortola":"British Virgin Islands","Vancouver":"Canada","Whitehorse":"Canada","Winnipeg":"Canada","Yellowknife":"Canada","Casey":"United States","Davis":"United States","Palmer":"Puerto Rico","Vostok":"Kazakhstan","Longyearbyen":"Svalbard and Jan Mayen","Aden":"Yemen","Almaty":"Kazakhstan","Amman":"Hashemite Kingdom of Jordan","Aqtau":"Kazakhstan","Ashgabat":"Turkmenistan","Atyrau":"Kazakhstan","Baghdad":"Iraq","Baku":"Azerbaijan","Bangkok":"Thailand","Barnaul":"Russia","Beirut":"Lebanon","Bishkek":"Kyrgyzstan","Chita":"Russia","Colombo":"Sri Lanka","Damascus":"Syria","Dhaka":"Bangladesh","Dili":"East Timor","Dubai":"United Arab Emirates","Dushanbe":"Tajikistan","Famagusta":"Cyprus","Gaza":"Palestine","Hebron":"Palestine","Hong Kong":"Hong Kong","Irkutsk":"Russia","Jakarta":"Indonesia","Jayapura":"Indonesia","Jerusalem":"Israel","Kabul":"Afghanistan","Kamchatka":"Russia","Karachi":"Pakistan","Kathmandu":"Nepal","Kolkata":"India","Krasnoyarsk":"Russia","Kuala Lumpur":"Malaysia","Kuching":"Malaysia","Macau":"Brazil","Magadan":"Russia","Makassar":"Indonesia","Manila":"Philippines","Muscat":"Oman","Nicosia":"Cyprus","Novokuznetsk":"Russia","Novosibirsk":"Russia","Omsk":"Russia","Oral":"Kazakhstan","Phnom Penh":"Cambodia","Pontianak":"Indonesia","Pyongyang":"North Korea","Riyadh":"Saudi Arabia","Seoul":"Republic of Korea","Shanghai":"China","Singapore":"Singapore","Taipei":"Taiwan","Tashkent":"Uzbekistan","Tbilisi":"Georgia","Thimphu":"Bhutan","Tokyo":"Japan","Tomsk":"Russia","Vientiane":"Laos","Vladivostok":"Russia","Yakutsk":"Russia","Yangon":"Myanmar [Burma]","Yekaterinburg":"Russia","Yerevan":"Armenia","Madeira":"Portugal","Reykjavik":"Iceland","Stanley":"Falkland Islands","Adelaide":"Australia","Brisbane":"Australia","Broken Hill":"Australia","Currie":"United Kingdom","Darwin":"Australia","Hobart":"Australia","Melbourne":"United Kingdom","Perth":"Canada","Sydney":"Canada","Amsterdam":"Netherlands","Andorra":"Spain","Astrakhan":"Russia","Athens":"Canada","Belgrade":"Serbia","Berlin":"Germany","Bratislava":"Slovakia","Brussels":"Belgium","Bucharest":"Romania","Budapest":"Hungary","Copenhagen":"Denmark","Dublin":"Ireland","Gibraltar":"Gibraltar","Guernsey":"United States","Helsinki":"Finland","Istanbul":"Turkey","Jersey":"United States","Kaliningrad":"Russia","Kiev":"Ukraine","Kirov":"Russia","Lisbon":"Portugal","Ljubljana":"Slovenia","London":"South Africa","Luxembourg":"Luxembourg","Madrid":"Colombia","Malta":"Latvia","Mariehamn":"\u00c5land","Minsk":"Belarus","Monaco":"Monaco","Moscow":"Russia","Oslo":"Norway","Paris":"Canada","Podgorica":"Montenegro","Prague":"Czech Republic","Riga":"Latvia","Rome":"Italy","Samara":"Russia","San Marino":"San Marino","Sarajevo":"Bosnia and Herzegovina","Saratov":"Russia","Simferopol":"Ukraine","Skopje":"Macedonia","Sofia":"Bulgaria","Stockholm":"Sweden","Tallinn":"Estonia","Ulyanovsk":"Russia","Vaduz":"Liechtenstein","Vienna":"Austria","Vilnius":"Republic of Lithuania","Volgograd":"Russia","Warsaw":"Poland","Zagreb":"Croatia","Zurich":"Switzerland","Antananarivo":"Madagascar","Christmas":"United States","Cocos":"Brazil","Apia":"Samoa","Auckland":"New Zealand","Chatham":"Canada","Funafuti":"Tuvalu","Galapagos":"Spain","Gambier":"United States","Honolulu":"United States","Majuro":"Marshall Islands","Midway":"United States","Norfolk":"United States","Noumea":"New Caledonia","Pago Pago":"American Samoa","Palau":"Spain","Pitcairn":"United States","Port Moresby":"Papua New Guinea","Saipan":"Northern Mariana Islands","Wake":"United States","Wallis":"United States"}';

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}//end chaty_country_city_name()

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}

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