Change the state/province application form field to a drop-down of US states and territories.

snippet_change_state_to_US_states_dropdown.php

<?php // omit opening PHP tag
add_filter( 'matador_application_fields_structure', 'mdocs_change_state_field_to_US_states_dropdown', 50, 1 );
/**
 * Matador Change "State" to US States Dropdown
 *
 * Change the state/province application form field to a drop-down (<select>) of US states and territories.
 *
 * @since 2021-02-22
 *
 * @param array $fields Array of Form Fields
 *
 * @return array
 */
function mdocs_change_state_field_to_US_states_dropdown( $fields ) {
	$fields['state']['type']    = 'select';
	$fields['state']['options'] = array(
		'Alabama'                        => 'Alabama',
		'Alaska'                         => 'Alaska',
		'American Samoa'                 => 'American Samoa',
		'Arizona'                        => 'Arizona',
		'Arkansas'                       => 'Arkansas',
		'California'                     => 'California',
		'Colorado'                       => 'Colorad',
		'Connecticut'                    => 'Connecticut',
		'Deleware'                       => 'Deleware',
		'District of Columbia'           => 'District of Columbia',
		'Federated States of Micronesia' => 'Federated States of Micronesia',
		'Florida'                        => 'Florida',
		'Georgia'                        => 'Georgia',
		'Guam'                           => 'Guam',
		'Hawaii'                         => 'Hawaii',
		'Idaho'                          => 'Idaho',
		'Illinois'                       => 'Illinois',
		'Indiana'                        => 'Indiana',
		'Iowa'                           => 'Iowa',
		'Kansas'                         => 'Kansas',
		'Kentucky'                       => 'Kentucky',
		'Louisiana'                      => 'Louisiana',
		'Maine'                          => 'Maine',
		'Marshall Islands'               => 'Marshall Islands',
		'Maryland'                       => 'Maryland',
		'Massachusetts'                  => 'Massachusetts',
		'Michigan'                       => 'Michigan',
		'Minnesota'                      => 'Minnesota',
		'Mississippi'                    => 'Mississippi',
		'Missouri'                       => 'Missouri',
		'Montana'                        => 'Montana',
		'Nebraska'                       => 'Nebraska',
		'Nevada'                         => 'Nevada',
		'New Hampshire'                  => 'New Hampshire',
		'New Jersey'                     => 'New Jersey',
		'New Mexico'                     => 'New Mexico',
		'New York'                       => 'New York',
		'North Carolina'                 => 'North Carolina',
		'North Dakota'                   => 'North Dakota',
		'Northern Mariana Islands'       => 'Northern Mariana Islands',
		'Ohio'                           => 'Ohio',
		'Oklahoma'                       => 'Oklahoma',
		'Oregon'                         => 'Oregon',
		'Palau'                          => 'Palau',
		'Pennsylvania'                   => 'Pennsylvania',
		'Puerto Rico'                    => 'Puerto Rico',
		'Rhode Island'                   => 'Rhode Island',
		'South Carolina'                 => 'South Carolina',
		'South Dakota'                   => 'South Dakota',
		'Tennessee'                      => 'Tennessee',
		'Texas'                          => 'Texas',
		'Utah'                           => 'Utah',
		'Vermont'                        => 'Vermont',
		'Virgin Islands'                 => 'Virgin Islands',
		'Virginia'                       => 'Virginia',
		'Washington'                     => 'Washington',
		'West Virginia'                  => 'West Virginia',
		'Wisconsin'                      => 'Wisconsin',
		'Wyoming'                        => 'Wyoming',
		'Armed Forces Europe'            => 'Armed Forces Africa \ Canada \ Europe \ Middle East',
		'Armed Forces America'           => 'Armed Forces America (Except Canada)',
		'Armed Forces Pacific'           => 'Armed Forces Pacific',
	);

	return $fields;
}