Drop Down List of Countries

<?php
$countries = array(
   'AF' => 'Afghanistan',
   'AX' => 'Aland Islands',
   'AL' => 'Albania',
   'DZ' => 'Algeria',
   'AS' => 'American Samoa',
   'AD' => 'Andorra',
   'AO' => 'Angola',
   'AI' => 'Anguilla',
   'AQ' => 'Antarctica',
   'AG' => 'Antigua and Barbuda',
   'AR' => 'Argentina',
   'AM' => 'Armenia',
   'AW' => 'Aruba',
   'AU' => 'Australia',
   'AT' => 'Austria',
   'AZ' => 'Azerbaijan',
   'BS' => 'Bahamas',
   'BH' => 'Bahrain',
   'BD' => 'Bangladesh',
   'BB' => 'Barbados',
   'BY' => 'Belarus',
   'BE' => 'Belgium',
   'BZ' => 'Belize',
   'BJ' => 'Benin',
   'BM' => 'Bermuda',
   'BT' => 'Bhutan',
   'BO' => 'Bolivia',
   'BA' => 'Bosnia and Herzegovina',
   'BW' => 'Botswana',
   'BV' => 'Bouvet Island',
   'BR' => 'Brazil',
   'IO' => 'British Indian Ocean Territory',
   'BN' => 'Brunei',
   'BG' => 'Bulgaria',
   'BF' => 'Burkina Faso',
   'BI' => 'Burundi',
   'KH' => 'Cambodia',
   'CM' => 'Cameroon',
   'CA' => 'Canada',
   'CV' => 'Cape Verde',
   'KY' => 'Cayman Islands',
   'CF' => 'Central African Republic',
   'TD' => 'Chad',
   'CL' => 'Chile',
   'CN' => 'China',
   'CX' => 'Christmas Island',
   'CC' => 'Cocos Islands',
   'CO' => 'Colombia',
   'KM' => 'Comoros',
   'CG' => 'Congo',
   'CD' => 'Congo, Democratic Republic of (Congo, Democratic Republic of the)',
   'CK' => 'Cook Islands',
   'CR' => 'Costa Rica',
   'CI' => 'Côte d\'Ivoire',
   'HR' => 'Croatia',
   'CU' => 'Cuba',
   'CY' => 'Cyprus',
   'CZ' => 'Czech Republic',
   'DK' => 'Denmark',
   'DJ' => 'Djibouti',
   'DM' => 'Dominica',
   'DO' => 'Dominican Republic',
   'EC' => 'Ecuador',
   'EG' => 'Egypt',
   'SV' => 'El Salvador',
   'GQ' => 'Equatorial Guinea',
   'ER' => 'Eritrea',
   'EE' => 'Estonia',
   'ET' => 'Ethiopia',
   'FK' => 'Falkland Islands',
   'FO' => 'Faroe Islands',
   'FJ' => 'Fiji',
   'FI' => 'Finland',
   'FR' => 'France',
   'GF' => 'French Guiana',
   'PF' => 'French Polynesia',
   'TF' => 'French Southern Territories',
   'GA' => 'Gabon',
   'GM' => 'Gambia',
   'GE' => 'Georgia',
   'DE' => 'Germany',
   'GH' => 'Ghana',
   'GI' => 'Gibraltar',
   'GR' => 'Greece',
   'GL' => 'Greenland',
   'GD' => 'Grenada',
   'GP' => 'Guadeloupe',
   'GU' => 'Guam',
   'GT' => 'Guatemala',
   'GG' => 'Guernsey',
   'GN' => 'Guinea',
   'GW' => 'Guinea-Bissau',
   'GY' => 'Guyana',
   'HT' => 'Haiti',
   'HM' => 'Heard Island and McDonald Islands',
   'HN' => 'Honduras',
   'HK' => 'Hong Kong',
   'HU' => 'Hungary',
   'IS' => 'Iceland',
   'IN' => 'India',
   'ID' => 'Indonesia',
   'IR' => 'Iran',
   'IQ' => 'Iraq',
   'IE' => 'Ireland',
   'IM' => 'Isle of Man',
   'IL' => 'Israel',
   'IT' => 'Italy',
   'JM' => 'Jamaica',
   'JP' => 'Japan',
   'JE' => 'Jersey',
   'JO' => 'Jordan',
   'KZ' => 'Kazakhstan',
   'KE' => 'Kenya',
   'KI' => 'Kiribati',
   'KW' => 'Kuwait',
   'KG' => 'Kyrgyzstan',
   'LA' => 'Laos',
   'LV' => 'Latvia',
   'LB' => 'Lebanon',
   'LS' => 'Lesotho',
   'LR' => 'Liberia',
   'LY' => 'Libya',
   'LI' => 'Liechtenstein',
   'LT' => 'Lithuania',
   'LU' => 'Luxembourg',
   'MO' => 'Macao',
   'MK' => 'Macedonia',
   'MG' => 'Madagascar',
   'MW' => 'Malawi',
   'MY' => 'Malaysia',
   'MV' => 'Maldives',
   'ML' => 'Mali',
   'MT' => 'Malta',
   'MH' => 'Marshall Islands',
   'MQ' => 'Martinique',
   'MR' => 'Mauritania',
   'MU' => 'Mauritius',
   'YT' => 'Mayotte',
   'MX' => 'Mexico',
   'FM' => 'Micronesia',
   'MD' => 'Moldova',
   'MC' => 'Monaco',
   'MN' => 'Mongolia',
   'ME' => 'Montenegro',
   'MS' => 'Montserrat',
   'MA' => 'Morocco',
   'MZ' => 'Mozambique',
   'MM' => 'Myanmar',
   'NA' => 'Namibia',
   'NR' => 'Nauru',
   'NP' => 'Nepal',
   'NL' => 'Netherlands',
   'AN' => 'Netherlands Antilles',
   'NC' => 'New Caledonia',
   'NZ' => 'New Zealand',
   'NI' => 'Nicaragua',
   'NE' => 'Niger',
   'NG' => 'Nigeria',
   'NU' => 'Niue',
   'NF' => 'Norfolk Island',
   'MP' => 'Northern Mariana Islands',
   'KP' => 'North Korea',
   'NO' => 'Norway',
   'OM' => 'Oman',
   'PK' => 'Pakistan',
   'PW' => 'Palau',
   'PS' => 'Palestinian Territory',
   'PA' => 'Panama',
   'PG' => 'Papua New Guinea',
   'PY' => 'Paraguay',
   'PE' => 'Peru',
   'PH' => 'Philippines',
   'PN' => 'Pitcairn',
   'PL' => 'Poland',
   'PT' => 'Portugal',
   'PR' => 'Puerto Rico',
   'QA' => 'Qatar',
   'RE' => 'Reunion',
   'RO' => 'Romania',
   'RU' => 'Russia',
   'RW' => 'Rwanda',
   'SH' => 'Saint Helena',
   'KN' => 'Saint Kitts and Nevis',
   'LC' => 'Saint Lucia',
   'PM' => 'Saint Pierre and Miquelon',
   'VC' => 'Saint Vincent and the Grenadines',
   'WS' => 'Samoa',
   'SM' => 'San Marino',
   'ST' => 'Sao Tome and Principe',
   'SA' => 'Saudi Arabia',
   'SN' => 'Senegal',
   'RS' => 'Serbia',
   'CS' => 'Serbia and Montenegro',
   'SC' => 'Seychelles',
   'SL' => 'Sierra Leone',
   'SG' => 'Singapore',
   'SK' => 'Slovakia',
   'SI' => 'Slovenia',
   'SB' => 'Solomon Islands',
   'SO' => 'Somalia',
   'ZA' => 'South Africa',
   'GS' => 'South Georgia and the South Sandwich Islands',
   'KR' => 'South Korea',
   'ES' => 'Spain',
   'LK' => 'Sri Lanka',
   'SD' => 'Sudan',
   'SR' => 'Suriname',
   'SJ' => 'Svalbard and Jan Mayen',
   'SZ' => 'Swaziland',
   'SE' => 'Sweden',
   'CH' => 'Switzerland',
   'SY' => 'Syria',
   'TW' => 'Taiwan',
   'TJ' => 'Tajikistan',
   'TZ' => 'Tanzania',
   'TH' => 'Thailand',
   'XX_TI' => 'Tibet',
   'TL' => 'Timor-Leste',
   'TG' => 'Togo',
   'TK' => 'Tokelau',
   'TO' => 'Tonga',
   'TT' => 'Trinidad and Tobago',
   'TN' => 'Tunisia',
   'TR' => 'Turkey',
   'TM' => 'Turkmenistan',
   'TC' => 'Turks and Caicos Islands',
   'TV' => 'Tuvalu',
   'UG' => 'Uganda',
   'UA' => 'Ukraine',
   'AE' => 'United Arab Emirates',
   'GB' => 'United Kingdom',
   'US' => 'United States',
   'UM' => 'United States minor outlying islands',
   'UY' => 'Uruguay',
   'UZ' => 'Uzbekistan',
   'VU' => 'Vanuatu',
   'VA' => 'Vatican City',
   'VE' => 'Venezuela',
   'VN' => 'Vietnam',
   'VG' => 'Virgin Islands, British',
   'VI' => 'Virgin Islands, U.S.',
   'WF' => 'Wallis and Futuna',
   'EH' => 'Western Sahara',
   'YE' => 'Yemen',
   'ZM' => 'Zambia',
   'ZW' => 'Zimbabwe'
);
 
echo '<form action="" method="post"><select name="country"><option value="">Select A Country</option>';
foreach ($countries as $country_code => $country)
{
	$selected = ($_POST['country'] === $country_code) ? ' selected="selected"' : '';
	echo '<option value="', $country_code, '"', $selected, '>', $country, '</option>';
}
echo '</select><input type="submit" value="Submit"></form>';
?>