PHP有json_encode的十进制数字

Question

I have an issue with some json code where decimal numbers MUST be encoded without quotes and maintain two decimal places

e.g.

{12.34, 33.40, 25.00}

My problem is that the array I have creates the numbers as string

foreach($numbers as $n)
{
  $result[] = number_format($n, 2, '.', '');
}
json_encode($result);

// result = {"12.34", "33.40", "25.00"}

Answer 1

I had similar issie with this. This may not be the best code but it work for me. Maybe it can help you. Try this (I am using codeigniter):

function getData() {

    $data = $this->Teplomer_model->showData(); //get your data from database as return $query->result();

    //create array
    $arr = array();

    //foreach data to array
    foreach ($data as $row) {
        $arr[] = array(
        "id"                =>  $row->id_teplota,
        "datum"             =>  $row->cas_teplota,
        "teplota"           =>  $row->teplota_teplota,
        "vlhkost"           =>  $row->vlhkost_teplota
        );
    }

    //echo array as json and check if there is any numbers
    echo json_encode($arr, JSON_NUMERIC_CHECK );
}

And output:

{"id":3,"datum":"2019-02-08 14:03:31","teplota":22.33,"vlhkost":19.7},{"id":4,"datum":"2019-02-08 14:18:35","teplota":23,"vlhkost":19}