Home Get Global Timezones/Locations in Dropdown Select Menu

Get Global Timezones/Locations in Dropdown Select Menu

October 7, 2017

Using PHP’s listidentifiers (part of the DateTimeZone class ), we can create a dropdown menu of all available global timezone identifiers. It’s handy for inclusion in forms if you’re after a general region rather than just country.

The first function retrieves timezone values and returns an array:

<?php
/*
	Get Global Timezones/Locations in Dropdown Select Menu
	http://www.beliefmedia.com/code/php-snippets/timezone-select-menu
*/

 
function beliefmedia_get_timezones() {
  $o = array();
  $t_zones = timezone_identifiers_list();
     
  foreach($t_zones as $a) {
  $t = '';

    try {
      /* Throws exception for 'US/Pacific-New' */
      $zone = new DateTimeZone($a);
             
      $seconds = $zone->getOffset( new DateTime('now', $zone) );
      $hours = sprintf( '%+02d', intval($seconds / 3600));
      $minutes = sprintf( '%02d', ($seconds % 3600) / 60);
     
      $t = $a . '  [ ' . $hours . ':' . $minutes . ' ]';
      $o[$a] = $t;
    }
         
    /* Exceptions must be catched, else a blank page */
    catch(Exception $e) {
      /* die("Exception : " . $e->getMessage() . '<br />'); */
    }

  }

  /* Sort array by key */
  ksort($o);
     
 return $o;
}

<?php

Get Global Timezones/Locations in Dropdown Select Menu

http://www.beliefmedia.com/code/php-snippets/timezone-select-menu

function beliefmedia_get_timezones() {

$o = array();

$t_zones = timezone_identifiers_list();

foreach($t_zones as $a) {

$t = '';

try {

/* Throws exception for 'US/Pacific-New' */

$zone = new DateTimeZone($a);

$seconds = $zone->getOffset( new DateTime('now', $zone) );

$hours = sprintf( '%+02d', intval($seconds / 3600));

$minutes = sprintf( '%02d', ($seconds % 3600) / 60);

$t = $a . ' [ ' . $hours . ':' . $minutes . ' ]';

$o[$a] = $t;

}

/* Exceptions must be catched, else a blank page */

catch(Exception $e) {

/* die("Exception : " . $e->getMessage() . '<br />'); */

}

/* Sort array by key */

ksort($o);

return $o;

}

The second function retrieves the timezone array and manufactures the select menu.

/*
	Get Global Timezones/Locations in Dropdown Select Menu
	http://www.beliefmedia.com/code/php-snippets/timezone-select-menu
*/


function beliefmedia_timezones() {

  /* Get timezones */
  $o = beliefmedia_get_timezones();

  foreach($o as $tz => $label) {
    $return .= '<option value="' . $tz . '">' . $label . '</option>';
  }

 return '<select name="timezone" style="height: 30px; font-size: 1.0em;">' . $return . '</select>';
}

Get Global Timezones/Locations in Dropdown Select Menu

http://www.beliefmedia.com/code/php-snippets/timezone-select-menu

function beliefmedia_timezones() {

/* Get timezones */

$o = beliefmedia_get_timezones();

foreach($o as $tz => $label) {

$return .= '<option value="' . $tz . '">' . $label . '</option>';

}

return '<select name="timezone" style="height: 30px; font-size: 1.0em;">' . $return . '</select>';

}

Usage is as follows:

/* Usage */
echo beliefmedia_timezones();

1 2	/* Usage */ echo beliefmedia_timezones();

The results is as follows:

Note: I’ve included raw HTML to show the list so timezone values may not be correct.

Shortt URL for this post: http://shor.tt/2nIT

Get Global Timezones/Locations in Dropdown Select Menu

OUR LATEST ARTICLES

What Your Business Can Learn from the Michelin Restaurant Guide

How To Create An Effective Lead Magnet (Or “Relationship Offer”)

Smartnumber Availability Booklet

The Hayne Royal Commission, Final Report

Australian Childcare Center API

Follow @BeliefMedia on Social

LATEST BELIEFMEDIA NEWS

Sending Telstra SMS Messages (And The New BeliefMedia Platform)

LATEST MARKETING ARTICLES

What Your Business Can Learn from the Michelin Restaurant Guide

How To Create An Effective Lead Magnet (Or “Relationship Offer”)

Smartnumber Availability Booklet