US States abbreviations to Full Name
$states = array(
'AL' => 'Alabama',
'AK' => 'Alaska',
'AZ' => 'Arizona',
'AR' => 'Arkansas',
'CA' => 'California',
'CO' => 'Colorado',
'CT' => 'Connecticut',
'DE' => 'Delaware',
'DC' => 'Washington DC',
'FL' => 'Florida',
'GA' => 'Georgia',
'HI' => 'Hawaii',
'ID' => 'Idaho',
'IL' => 'Illinois',
'IN' => 'Indiana',
'IA' => 'Iowa',
'KS' => 'Kansas',
'KY' => 'Kentucky',
'LA' => 'Louisiana',
'ME' => 'Maine',
'MD' => 'Maryland',
'MA' => 'Massachusetts',
'MI' => 'Michigan',
'MN' => 'Minnesota',
'MS' => 'Mississippi',
'MO' => 'Missouri',
'MT' => 'Montana',
'NE' => 'Nebraska',
'NV' => 'Nevada',
'NH' => 'New Hampshire',
'NJ' => 'New Jersey',
'NM' => 'New Mexico',
'NY' => 'New York',
'NC' => 'North Carolina',
'ND' => 'North Dakota',
'OH' => 'Ohio',
'OK' => 'Oklahoma',
'OR' => 'Oregon',
'PA' => 'Pennsylvania',
'PR' => 'Puerto Rico',
'RI' => 'Rhode Island',
'SC' => 'South Carolina',
'SD' => 'South Dakota',
'TN' => 'Tennessee',
'TX' => 'Texas',
'UT' => 'Utah',
'VT' => 'Vermont',
'VI' => 'Virgin Islands',
'VA' => 'Virginia',
'WA' => 'Washington',
'WV' => 'West Virginia',
'WI' => 'Wisconsin',
'WY' => 'Wyoming',
);
US States Full Names to abbreviations
$states = array(
'Alabama'=>'AL',
'Alaska'=>'AK',
'Arizona'=>'AZ',
'Arkansas'=>'AR',
'California'=>'CA',
'Colorado'=>'CO',
'Connecticut'=>'CT',
'Delaware'=>'DE',
'Florida'=>'FL',
'Georgia'=>'GA',
'Hawaii'=>'HI',
'Idaho'=>'ID',
'Illinois'=>'IL',
'Indiana'=>'IN',
'Iowa'=>'IA',
'Kansas'=>'KS',
'Kentucky'=>'KY',
'Louisiana'=>'LA',
'Maine'=>'ME',
'Maryland'=>'MD',
'Massachusetts'=>'MA',
'Michigan'=>'MI',
'Minnesota'=>'MN',
'Mississippi'=>'MS',
'Missouri'=>'MO',
'Montana'=>'MT',
'Nebraska'=>'NE',
'Nevada'=>'NV',
'New Hampshire'=>'NH',
'New Jersey'=>'NJ',
'New Mexico'=>'NM',
'New York'=>'NY',
'North Carolina'=>'NC',
'North Dakota'=>'ND',
'Ohio'=>'OH',
'Oklahoma'=>'OK',
'Oregon'=>'OR',
'Pennsylvania'=>'PA',
'Rhode Island'=>'RI',
'South Carolina'=>'SC',
'South Dakota'=>'SD',
'Tennessee'=>'TN',
'Texas'=>'TX',
'Utah'=>'UT',
'Vermont'=>'VT',
'Virginia'=>'VA',
'Washington'=>'WA',
'West Virginia'=>'WV',
'Wisconsin'=>'WI',
'Wyoming'=>'WY'
);
For Google Maps or other Maps API, use this latitudes and longitudes for states
$statesCoord = array(
'AL'=>'32.6010112,-86.6807365',
'AK'=>'61.3025006,-158.7750198',
'AZ'=>'34.1682185,-111.930907',
'AR'=>'34.7519275,-92.1313784',
'CA'=>'37.2718745,-119.2704153',
'CO'=>'38.9979339,-105.550567',
'CT'=>'41.5187835,-72.757507',
'DE'=>'39.145251,-75.4189206',
'DC'=>'38.8993487,-77.0145666',
'FL'=>'27.9757279,-83.8330166',
'GA'=>'32.6781248,-83.2229757',
'HI'=>'20.46,-157.505',
'ID'=>'45.4945756,-114.1424303',
'IL'=>'39.739318,-89.504139',
'IN'=>'39.7662195,-86.441277',
'IA'=>'41.9383166,-93.389798',
'KS'=>'38.4987789,-98.3200779',
'KY'=>'37.8222935,-85.7682399',
'LA'=>'30.9733766,-91.4299097',
'ME'=>'45.2185133,-69.0148656',
'MD'=>'38.8063524,-77.2684162',
'MA'=>'42.0629398,-71.718067',
'MI'=>'44.9435598,-86.4158049',
'MN'=>'46.4418595,-93.3655146',
'MS'=>'32.5851062,-89.8772196',
'MO'=>'38.3046615,-92.437099',
'MT'=>'46.6797995,-110.044783',
'NE'=>'41.5008195,-99.680902',
'NV'=>'38.502032,-117.0230604',
'NH'=>'44.0012306,-71.5799231',
'NJ'=>'40.1430058,-74.7311156',
'NM'=>'34.1662325,-106.0260685',
'NY'=>'40.7056258,-73.97968',
'NC'=>'35.2145629,-79.8912675',
'ND'=>'47.4678819,-100.3022655',
'OH'=>'40.1903624,-82.6692525',
'OK'=>'35.3097654,-98.7165585',
'OR'=>'44.1419049,-120.5380993',
'PA'=>'40.9945928,-77.6046984',
'RI'=>'41.5827282,-71.5064508',
'SC'=>'33.62505,-80.9470381',
'SD'=>'44.2126995,-100.2471641',
'TN'=>'35.830521,-85.9785989',
'TX'=>'31.1693363,-100.0768425',
'UT'=>'39.4997605,-111.547028',
'VT'=>'43.8717545,-72.4477828',
'VA'=>'38.0033855,-79.4587861',
'WA'=>'38.8993487,-77.0145665',
'WV'=>'38.9201705,-80.1816905',
'WI'=>'44.7862968,-89.8267049',
'WY'=>'43.000325,-107.5545669',
);
Credit: Github
abbreviations array states US