$opts = array(
'http'=>array(
'method'=>"GET",
'header'=>"Authorization: Bearer {$access_token}rn",
'Content-Type'=>"application/x-www-form-urlencoded"));

$context = stream_context_create($opts);
// Open the file using the HTTP headers set above
$response = file_get_contents($url, false, $context);
$user = json_decode($response, true);
return $user['data'];
}
// open mysql connection
$host = "localhost";
$username = "root";
$password = "5984";
$dbname = "test";
$con = mysqli_connect($host, $username, $password, $dbname);

if(mysqli_connect_errno($con)){
echo "fail!";
}
else{
echo "success!";
$result = mysqli_query($con, "select * from testtable");.
while($row = mysqli_fetch_array($result)){
echo $row['column1'];
echo " ";
}}

foreach($user as $item){
mysqli_query($con, "INSERT INTO testtable (column1, column2, column3,column4,
column5) VALUES ('".$item['time_updated']."','".$item['time_created']."',
'".$item['date']."','".$item['resting_heartrate']."', '".$item['place_lat']."')");}