Adjust the json response in array and objects - mysql

Question

I am working on the web service and json response.
I got this response from the API :
[
[
{
"id":"1",
"unique_id":"579992ffd1",
"contact_name":"qweryyy",
"user_phone_number":"03331524145",
"created_at":"2016-08-01 15:53:59"
},
{
"id":"2",
"unique_id":"579992ffd1",
"contact_name":"qwer",
"user_phone_number":"03331524231",
"created_at":"2016-08-01 16:04:59"
},
{
"id":"3",
"unique_id":"579992ffd1",
"contact_name":"qwer",
"user_phone_number":"0333152111",
"created_at":"2016-08-01 16:05:08"
}
]
]
But i need to show the response like this JSON:
{
"unique_id":"579992ffd1",
"user":[
{
"id":"1",
"contact_name":"qweryyy",
"user_phone_number":"03331524145",
"created_at":"2016-08-01 15:53:59"
},
{
"id":"2",
"contact_name":"qweryyy",
"user_phone_number":"03331524145",
"created_at":"2016-08-01 15:53:59"
},
{
"id":"3",
"contact_name":"qweryyy",
"user_phone_number":"03331524145",
"created_at":"2016-08-01 15:53:59"
}
]
}
Here is my code to get the user array and return it to show the json response:
if ($result) {
$this->conn = new PDO("mysql:host=$servername;dbname=$dbname",
$username, $password);
$this->conn->setAttribute(PDO::ATTR_ERRMODE,
PDO::ERRMODE_EXCEPTION);
$stmt = $this->conn->prepare("SELECT * FROM contact WHERE
user_phone_number = '$user_phone_number' ");
//$stmt->bind_param("s", $phone_number);
$stmt->execute();
$user = $stmt->setFetchMode(PDO::FETCH_ASSOC);
$user = $stmt->fetchAll();
//print_r($user);
return $user;
} else {
return false;
}
SHow json response :
if ($user) {
$string = '';
$cart = array();
$response["status"] = TRUE;
for($x=0;$x<count($user);$x++)
{
$string = $user[$x];
array_push($cart, $string);
}
echo json_encode(array($cart));
}
Any help to show the required output ??

Answer 1

$query = 'SELECT * FROM contact WHERE user_phone_number = "'.$user_phone_number.'"';
$result = mysql_query($query) or trigger_error($query.'<br>'.mysql_error(),E_USER_ERROR);
$list = Array();
while($row = mysql_fetch_array($result,MYSQL_ASSOC))
{
$list[] = $row;
}
$cart = Array(
'unique_id' => '579992ffd1';
'user' => $list;
);
echo json_encode($cart);