Making an array of country phone codes is actually pretty simple with PHP. Just use the array() function and list out each country code as a key-value pair. The following example creates an array of country codes with the country name as the key and the country code as the value.
Minified version
$phoneCodes=['AF'=>'93','AL'=>'355','DZ'=>'213','AS'=>'1-684','AD'=>'376','AO'=>'244','AI'=>'1-264','AQ'=>'672','AG'=>'1-268','AR'=>'54','AM'=>'374','AW'=>'297','AU'=>'61','AT'=>'43','AZ'=>'994','BS'=>'1-242','BH'=>'973','BD'=>'880','BB'=>'1-246','BY'=>'375','BE'=>'32','BZ'=>'501','BJ'=>'229','BM'=>'1-441','BT'=>'975','BO'=>'591','BA'=>'387','BW'=>'267','BR'=>'55','IO'=>'246','VG'=>'1-284','BN'=>'673','BG'=>'359','BF'=>'226','BI'=>'257','KH'=>'855','CM'=>'237','CA'=>'1','CV'=>'238','KY'=>'1-345','CF'=>'236','TD'=>'235','CL'=>'56','CN'=>'86','CX'=>'61','CC'=>'61','CO'=>'57','KM'=>'269','CK'=>'682','CR'=>'506','HR'=>'385','CU'=>'53','CW'=>'599','CY'=>'357','CZ'=>'420','CD'=>'243','DK'=>'45','DJ'=>'253','DM'=>'1-767','DO'=>'1-809','TL'=>'670','EC'=>'593','EG'=>'20','SV'=>'503','GQ'=>'240','ER'=>'291','EE'=>'372','ET'=>'251','FK'=>'500','FO'=>'298','FJ'=>'679','FI'=>'358','FR'=>'33','PF'=>'689','GA'=>'241','GM'=>'220','GE'=>'995','DE'=>'49','GH'=>'233','GI'=>'350','GR'=>'30','GL'=>'299','GD'=>'1-473','GU'=>'1-671','GT'=>'502','GG'=>'44-1481', 'GN'=>'224','GW'=>'245','GY'=>'592','HT'=>'509','HN'=>'504','HK'=>'852','HU'=>'36','IS'=>'354','IN'=>'91','ID'=>'62','IR'=>'98','IQ'=>'964','IE'=>'353','IM'=>'44-1624','IL'=>'972','IT'=>'39','CI'=>'225','JM'=>'1-876','JP'=>'81','JE'=>'44-1534','JO'=>'962','KZ'=>'7','KE'=>'254','KI'=>'686','XK'=>'383','KW'=>'965','KG'=>'996','LA'=>'856','LV'=>'371','LB'=>'961','LS'=>'266','LR'=>'231','LY'=>'218','LI'=>'423','LT'=>'370','LU'=>'352','MO'=>'853','MK'=>'389','MG'=>'261','MW'=>'265','MY'=>'60','MV'=>'960','ML'=>'223','MT'=>'356','MH'=>'692','MR'=>'222','MU'=>'230','YT'=>'262','MX'=>'52','FM'=>'691','MD'=>'373','MC'=>'377','MN'=>'976','ME'=>'382','MS'=>'1-664','MA'=>'212','MZ'=>'258','MM'=>'95','NA'=>'264','NR'=>'674','NP'=>'977','NL'=>'31','AN'=>'599','NC'=>'687','NZ'=>'64','NI'=>'505','NE'=>'227','NG'=>'234','NU'=>'683','KP'=>'850','MP'=>'1-670','NO'=>'47','OM'=>'968','PK'=>'92','PW'=>'680','PS'=>'970','PA'=>'507','PG'=>'675','PY'=>'595','PE'=>'51','PH'=>'63','PN'=>'64','PL'=>'48','PT'=>'351','PR'=>'1-787','QA'=>'974','CG'=>'242','RE'=>'262', 'RO'=>'40','RU'=>'7','RW'=>'250','BL'=>'590','SH'=>'290','KN'=>'1-869','LC'=>'1-758','MF'=>'590','PM'=>'508','VC'=>'1-784', 'WS'=>'685','SM'=>'378','ST'=>'239','SA'=>'966','SN'=>'221','RS'=>'381','SC'=>'248','SL'=>'232','SG'=>'65','SX'=>'1-721','SK'=>'421','SI'=>'386','SB'=>'677','SO'=>'252','ZA'=>'27','KR'=>'82','SS'=>'211','ES'=>'34','LK'=>'94','SD'=>'249','SR'=>'597','SJ'=>'47','SZ'=>'268','SE'=>'46','CH'=>'41','SY'=>'963','TW'=>'886','TJ'=>'992','TZ'=>'255','TH'=>'66','TG'=>'228','TK'=>'690','TO'=>'676','TT'=>'1-868','TN'=>'216','TR'=>'90','TM'=>'993','TC'=>'1-649','TV'=>'688','VI'=>'1-340','UG'=>'256','UA'=>'380','AE'=>'971','GB'=>'44','US'=>'1','UY'=>'598','UZ'=>'998','VU'=>'678','VA'=>'379','VE'=>'58','VN'=>'84','WF'=>'681','EH'=>'212','YE'=>'967','ZM'=>'260','ZW'=>'263'];
Full list
$phoneCodes = [ 'AF' => '93', 'AL' => '355', 'DZ' => '213', 'AS' => '1-684', 'AD' => '376', 'AO' => '244', 'AI' => '1-264', 'AQ' => '672', 'AG' => '1-268', 'AR' => '54', 'AM' => '374', 'AW' => '297', 'AU' => '61', 'AT' => '43', 'AZ' => '994', 'BS' => '1-242', 'BH' => '973', 'BD' => '880', 'BB' => '1-246', 'BY' => '375', 'BE' => '32', 'BZ' => '501', 'BJ' => '229', 'BM' => '1-441', 'BT' => '975', 'BO' => '591', 'BA' => '387', 'BW' => '267', 'BR' => '55', 'IO' => '246', 'VG' => '1-284', 'BN' => '673', 'BG' => '359', 'BF' => '226', 'BI' => '257', 'KH' => '855', 'CM' => '237', 'CA' => '1', 'CV' => '238', 'KY' => '1-345', 'CF' => '236', 'TD' => '235', 'CL' => '56', 'CN' => '86', 'CX' => '61', 'CC' => '61', 'CO' => '57', 'KM' => '269', 'CK' => '682', 'CR' => '506', 'HR' => '385', 'CU' => '53', 'CW' => '599', 'CY' => '357', 'CZ' => '420', 'CD' => '243', 'DK' => '45', 'DJ' => '253', 'DM' => '1-767', 'DO' => '1-809', 'TL' => '670', 'EC' => '593', 'EG' => '20', 'SV' => '503', 'GQ' => '240', 'ER' => '291', 'EE' => '372', 'ET' => '251', 'FK' => '500', 'FO' => '298', 'FJ' => '679', 'FI' => '358', 'FR' => '33', 'PF' => '689', 'GA' => '241', 'GM' => '220', 'GE' => '995', 'DE' => '49', 'GH' => '233', 'GI' => '350', 'GR' => '30', 'GL' => '299', 'GD' => '1-473', 'GU' => '1-671', 'GT' => '502', 'GG' => '44-1481', 'GN' => '224', 'GW' => '245', 'GY' => '592', 'HT' => '509', 'HN' => '504', 'HK' => '852', 'HU' => '36', 'IS' => '354', 'IN' => '91', 'ID' => '62', 'IR' => '98', 'IQ' => '964', 'IE' => '353', 'IM' => '44-1624', 'IL' => '972', 'IT' => '39', 'CI' => '225', 'JM' => '1-876', 'JP' => '81', 'JE' => '44-1534', 'JO' => '962', 'KZ' => '7', 'KE' => '254', 'KI' => '686', 'XK' => '383', 'KW' => '965', 'KG' => '996', 'LA' => '856', 'LV' => '371', 'LB' => '961', 'LS' => '266', 'LR' => '231', 'LY' => '218', 'LI' => '423', 'LT' => '370', 'LU' => '352', 'MO' => '853', 'MK' => '389', 'MG' => '261', 'MW' => '265', 'MY' => '60', 'MV' => '960', 'ML' => '223', 'MT' => '356', 'MH' => '692', 'MR' => '222', 'MU' => '230', 'YT' => '262', 'MX' => '52', 'FM' => '691', 'MD' => '373', 'MC' => '377', 'MN' => '976', 'ME' => '382', 'MS' => '1-664', 'MA' => '212', 'MZ' => '258', 'MM' => '95', 'NA' => '264', 'NR' => '674', 'NP' => '977', 'NL' => '31', 'AN' => '599', 'NC' => '687', 'NZ' => '64', 'NI' => '505', 'NE' => '227', 'NG' => '234', 'NU' => '683', 'KP' => '850', 'MP' => '1-670', 'NO' => '47', 'OM' => '968', 'PK' => '92', 'PW' => '680', 'PS' => '970', 'PA' => '507', 'PG' => '675', 'PY' => '595', 'PE' => '51', 'PH' => '63', 'PN' => '64', 'PL' => '48', 'PT' => '351', 'PR' => '1-787', 'QA' => '974', 'CG' => '242', 'RE' => '262', 'RO' => '40', 'RU' => '7', 'RW' => '250', 'BL' => '590', 'SH' => '290', 'KN' => '1-869', 'LC' => '1-758', 'MF' => '590', 'PM' => '508', 'VC' => '1-784', 'WS' => '685', 'SM' => '378', 'ST' => '239', 'SA' => '966', 'SN' => '221', 'RS' => '381', 'SC' => '248', 'SL' => '232', 'SG' => '65', 'SX' => '1-721', 'SK' => '421', 'SI' => '386', 'SB' => '677', 'SO' => '252', 'ZA' => '27', 'KR' => '82', 'SS' => '211', 'ES' => '34', 'LK' => '94', 'SD' => '249', 'SR' => '597', 'SJ' => '47', 'SZ' => '268', 'SE' => '46', 'CH' => '41', 'SY' => '963', 'TW' => '886', 'TJ' => '992', 'TZ' => '255', 'TH' => '66', 'TG' => '228', 'TK' => '690', 'TO' => '676', 'TT' => '1-868', 'TN' => '216', 'TR' => '90', 'TM' => '993', 'TC' => '1-649', 'TV' => '688', 'VI' => '1-340', 'UG' => '256', 'UA' => '380', 'AE' => '971', 'GB' => '44', 'US' => '1', 'UY' => '598', 'UZ' => '998', 'VU' => '678', 'VA' => '379', 'VE' => '58', 'VN' => '84', 'WF' => '681', 'EH' => '212', 'YE' => '967', 'ZM' => '260', 'ZW' => '263' ];
Once you have your array, you can then use it to look up the country code for a particular country. For example, if you wanted to find the country code for Algeria, you would use the following code.
echo $phoneCodes ['US];
//output: 1