PHP, PDO SQL Server, leading number 0 is cut from the returned data

Question

I am working on PHP + Slim Framework. I need to migrate MySQL to SQL Server. Something is wrong with the result of returning from a SELECT statement. Here is my example data,

╔════╦═══════╦════════════╦════════════╦═══════════════════════╗
║ id ║item_id║    lat     ║     lng    ║       timestamp       ║
╠════╬═══════╬════════════╬════════════╬═══════════════════════╣
║  1 ║  1    ║51.42743450 ║-0.72776696 ║2017-07-05 09:54:49.000║
║  2 ║  1    ║51.59665507 ║-0.72777098 ║2017-07-05 11:54:49.000║
║  3 ║  2    ║51.59664690 ║-0.67272032 ║2016-08-10 10:11:49.000║
║  4 ║  2    ║51.59664874 ║-0.67270288 ║2016-08-10 11:05:49.000║
║  5 ║  2    ║51.59665167 ║-0.67271587 ║2016-08-10 10:08:49.000║
╚════╩═══════╩════════════╩════════════╩═══════════════════════╝

And here is the code,

public function test(Request  $request, Response  $response, $args)
{
  $query = 'SELECT item_id, lat, lng FROM mySchema.record WHERE item_id = 1';
  $sth = $this->db->prepare($query);
  $sth->execute();
  $rows = $sth->fetchAll();
  $data = array('data' => $rows);
  return $response->withJson($data);
}  

Previously, in MySQL, data was returned correctly, like this (example),

"data" : [
    {
        "item_id" : "1",
        "lat" : "51.42743450",
        "lng" : "-0.72776696"
    }
]

But after working with SQL Server, it returns me data like this (example),

 "data" : [
    {
        "item_id" : "1",
        "lat" : "51.42743450",
        "lng" : "-.72776696"
    }
]

You can see that the leading number 0 is cut out from lng . I really don't know how to fix this. Can anyone help? Many thanks.

** EDIT: The Lng data type is DECIMAL (11.8) in SQL Server, which is similar to MySQL

Update

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Answer 1

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