Online PHP editor | output for gfcia

<?php $locations = Array( Array ( 'id' => 14, 'post_id' => 319, 'location' => 'Atlanta, GA', 'address' => '161 Racetrack Rd., McDonough', 'city' => 'Atlanta', 'state' => 'Georgia', 'state_code' =>'GA', 'country' => 'USA', 'zipcode' => 30253, 'service_zipcode' => '', 'phone' => '', 'fax' => '', 'email' => '', 'facebook' => '', 'twitter' => '', 'linkedin' => '', 'gplus' => '', 'latitude' => '', 'longitude' => '', 'url' => '', 'created_at' => '2019-04-22 07:22:55', 'updated_at' => '2019-04-22 07:26:31', ), Array ( 'id' => 16, 'post_id' => 321, 'location' => 'Augusta, Georigia', 'address' => '1446 Harper Street', 'city' => 'Augusta', 'state' => 'Georigia', 'state_code' => 'GA', 'country' => 'USA', 'zipcode' => '', 'service_zipcode' => '', 'phone' => '', 'fax' => '', 'email' => '', 'facebook' => '', 'twitter' => '', 'linkedin' => '', 'gplus' => '', 'latitude' => '', 'longitude' => '', 'url' => '', 'created_at' => '2019-04-22 07:29:33', 'updated_at' => '2019-04-22 07:32:25', ), Array ( 'id' => 16, 'post_id' => 321, 'location' => 'Augusta, Georigia', 'address' => '1446 Harper Street', 'city' => 'Huston', 'state' => 'Texas', 'state_code' => 'GA', 'country' => 'USA', 'zipcode' => '', 'service_zipcode' => '', 'phone' => '', 'fax' => '', 'email' => '', 'facebook' => '', 'twitter' => '', 'linkedin' => '', 'gplus' => '', 'latitude' => '', 'longitude' => '', 'url' => '', 'created_at' => '2019-04-22 07:29:33', 'updated_at' => '2019-04-22 07:32:25', ), Array ( 'id' => 12, 'post_id' => 317, 'location' => 'Savannah, Georgia', 'address' => '834 Northside Dr. East, Statesboro', 'city' => 'Savannah', 'state' => 'Georgia', 'state_code' => 'GA', 'country' => 'USA', 'zipcode' => 30458, 'service_zipcode' => '', 'phone' => '', 'fax' => '', 'email' => '', 'facebook' => '', 'twitter' => '', 'linkedin' => '', 'gplus' => '', 'latitude' => '', 'longitude' => '', 'url' => '', 'created_at' => '2019-04-22 07:15:43', 'updated_at' => '2019-04-22 07:18:11', ) ); $arr = array_column($locations, "state", "city"); asort($arr); $prev = null; foreach($arr as $city => $state){ if($state != $prev){ echo PHP_EOL . PHP_EOL . $state . PHP_EOL; $prev = $state; } echo "---" . $city . PHP_EOL; }