Array with ISO 3166-1 alpha-2 to ISO 3166-1 alpha-3 conversion

countries.php

$countries = array(
  'AF' => 'AFG',
  'AX' => 'ALA',
  'AL' => 'ALB',
  'DZ' => 'DZA',
  'AS' => 'ASM',
  'AD' => 'AND',
  'AO' => 'AGO',
  'AI' => 'AIA',
  'AQ' => 'ATA',
  'AG' => 'ATG',
  'AR' => 'ARG',
  'AM' => 'ARM',
  'AW' => 'ABW',
  'AU' => 'AUS',
  'AT' => 'AUT',
  'AZ' => 'AZE',
  'BS' => 'BHS',
  'BH' => 'BHR',
  'BD' => 'BGD',
  'BB' => 'BRB',
  'BY' => 'BLR',
  'BE' => 'BEL',
  'BZ' => 'BLZ',
  'BJ' => 'BEN',
  'BM' => 'BMU',
  'BT' => 'BTN',
  'BO' => 'BOL',
  'BQ' => 'BES',
  'BA' => 'BIH',
  'BW' => 'BWA',
  'BV' => 'BVT',
  'BR' => 'BRA',
  'IO' => 'IOT',
  'BN' => 'BRN',
  'BG' => 'BGR',
  'BF' => 'BFA',
  'BI' => 'BDI',
  'KH' => 'KHM',
  'CM' => 'CMR',
  'CA' => 'CAN',
  'CV' => 'CPV',
  'KY' => 'CYM',
  'CF' => 'CAF',
  'TD' => 'TCD',
  'CL' => 'CHL',
  'CN' => 'CHN',
  'CX' => 'CXR',
  'CC' => 'CCK',
  'CO' => 'COL',
  'KM' => 'COM',
  'CG' => 'COG',
  'CD' => 'COD',
  'CK' => 'COK',
  'CR' => 'CRI',
  'CI' => 'CIV',
  'HR' => 'HRV',
  'CU' => 'CUB',
  'CW' => 'CUW',
  'CY' => 'CYP',
  'CZ' => 'CZE',
  'DK' => 'DNK',
  'DJ' => 'DJI',
  'DM' => 'DMA',
  'DO' => 'DOM',
  'EC' => 'ECU',
  'EG' => 'EGY',
  'SV' => 'SLV',
  'GQ' => 'GNQ',
  'ER' => 'ERI',
  'EE' => 'EST',
  'ET' => 'ETH',
  'FK' => 'FLK',
  'FO' => 'FRO',
  'FJ' => 'FJI',
  'FI' => 'FIN',
  'FR' => 'FRA',
  'GF' => 'GUF',
  'PF' => 'PYF',
  'TF' => 'ATF',
  'GA' => 'GAB',
  'GM' => 'GMB',
  'GE' => 'GEO',
  'DE' => 'DEU',
  'GH' => 'GHA',
  'GI' => 'GIB',
  'GR' => 'GRC',
  'GL' => 'GRL',
  'GD' => 'GRD',
  'GP' => 'GLP',
  'GU' => 'GUM',
  'GT' => 'GTM',
  'GG' => 'GGY',
  'GN' => 'GIN',
  'GW' => 'GNB',
  'GY' => 'GUY',
  'HT' => 'HTI',
  'HM' => 'HMD',
  'VA' => 'VAT',
  'HN' => 'HND',
  'HK' => 'HKG',
  'HU' => 'HUN',
  'IS' => 'ISL',
  'IN' => 'IND',
  'ID' => 'IDN',
  'IR' => 'IRN',
  'IQ' => 'IRQ',
  'IE' => 'IRL',
  'IM' => 'IMN',
  'IL' => 'ISR',
  'IT' => 'ITA',
  'JM' => 'JAM',
  'JP' => 'JPN',
  'JE' => 'JEY',
  'JO' => 'JOR',
  'KZ' => 'KAZ',
  'KE' => 'KEN',
  'KI' => 'KIR',
  'KP' => 'PRK',
  'KR' => 'KOR',
  'KW' => 'KWT',
  'KG' => 'KGZ',
  'LA' => 'LAO',
  'LV' => 'LVA',
  'LB' => 'LBN',
  'LS' => 'LSO',
  'LR' => 'LBR',
  'LY' => 'LBY',
  'LI' => 'LIE',
  'LT' => 'LTU',
  'LU' => 'LUX',
  'MO' => 'MAC',
  'MK' => 'MKD',
  'MG' => 'MDG',
  'MW' => 'MWI',
  'MY' => 'MYS',
  'MV' => 'MDV',
  'ML' => 'MLI',
  'MT' => 'MLT',
  'MH' => 'MHL',
  'MQ' => 'MTQ',
  'MR' => 'MRT',
  'MU' => 'MUS',
  'YT' => 'MYT',
  'MX' => 'MEX',
  'FM' => 'FSM',
  'MD' => 'MDA',
  'MC' => 'MCO',
  'MN' => 'MNG',
  'ME' => 'MNE',
  'MS' => 'MSR',
  'MA' => 'MAR',
  'MZ' => 'MOZ',
  'MM' => 'MMR',
  'NA' => 'NAM',
  'NR' => 'NRU',
  'NP' => 'NPL',
  'NL' => 'NLD',
  'NC' => 'NCL',
  'NZ' => 'NZL',
  'NI' => 'NIC',
  'NE' => 'NER',
  'NG' => 'NGA',
  'NU' => 'NIU',
  'NF' => 'NFK',
  'MP' => 'MNP',
  'NO' => 'NOR',
  'OM' => 'OMN',
  'PK' => 'PAK',
  'PW' => 'PLW',
  'PS' => 'PSE',
  'PA' => 'PAN',
  'PG' => 'PNG',
  'PY' => 'PRY',
  'PE' => 'PER',
  'PH' => 'PHL',
  'PN' => 'PCN',
  'PL' => 'POL',
  'PT' => 'PRT',
  'PR' => 'PRI',
  'QA' => 'QAT',
  'RE' => 'REU',
  'RO' => 'ROU',
  'RU' => 'RUS',
  'RW' => 'RWA',
  'BL' => 'BLM',
  'SH' => 'SHN',
  'KN' => 'KNA',
  'LC' => 'LCA',
  'MF' => 'MAF',
  'PM' => 'SPM',
  'VC' => 'VCT',
  'WS' => 'WSM',
  'SM' => 'SMR',
  'ST' => 'STP',
  'SA' => 'SAU',
  'SN' => 'SEN',
  'RS' => 'SRB',
  'SC' => 'SYC',
  'SL' => 'SLE',
  'SG' => 'SGP',
  'SX' => 'SXM',
  'SK' => 'SVK',
  'SI' => 'SVN',
  'SB' => 'SLB',
  'SO' => 'SOM',
  'ZA' => 'ZAF',
  'GS' => 'SGS',
  'SS' => 'SSD',
  'ES' => 'ESP',
  'LK' => 'LKA',
  'SD' => 'SDN',
  'SR' => 'SUR',
  'SJ' => 'SJM',
  'SZ' => 'SWZ',
  'SE' => 'SWE',
  'CH' => 'CHE',
  'SY' => 'SYR',
  'TW' => 'TWN',
  'TJ' => 'TJK',
  'TZ' => 'TZA',
  'TH' => 'THA',
  'TL' => 'TLS',
  'TG' => 'TGO',
  'TK' => 'TKL',
  'TO' => 'TON',
  'TT' => 'TTO',
  'TN' => 'TUN',
  'TR' => 'TUR',
  'TM' => 'TKM',
  'TC' => 'TCA',
  'TV' => 'TUV',
  'UG' => 'UGA',
  'UA' => 'UKR',
  'AE' => 'ARE',
  'GB' => 'GBR',
  'US' => 'USA',
  'UM' => 'UMI',
  'UY' => 'URY',
  'UZ' => 'UZB',
  'VU' => 'VUT',
  'VE' => 'VEN',
  'VN' => 'VNM',
  'VG' => 'VGB',
  'VI' => 'VIR',
  'WF' => 'WLF',
  'EH' => 'ESH',
  'YE' => 'YEM',
  'ZM' => 'ZMB',
  'ZW' => 'ZWE'
);