How to pull data from mysql database and visualize with D3.JS?

Question

I have a database in MySQL which I want to visualize in D3.JS. In order to do that, first I want to parse the data in JSON fo

Answer 1

I have faced problem myself with json_encode, in the end I wrote my own code instead of json_encode. Just you need to set the sql and yoru connection info. Hope you find it useful.

$conn = new mysqli(DB_Host, DB_User, DB_Password, DB_Name) or die("Connection failed: " . $conn->connect_error);
$sql = "select  AID as id, deDate_Value as date, nterTime AS counter 
        from xxxx";

//Get the Date and store it in array
$records = array();
if ( $result=mysqli_query($conn,$sql) )
    while ( $obj=mysqli_fetch_object($result) )
        $records[] = $obj;

//echo in json format on screen       
echo "[";
$comma_1 = "";
foreach($records as $obj)
{
    echo $comma_1."{";
    $comma_2 = "";
    foreach($obj as $key => $value)
    {
        echo $comma_2.'"'.$key."\": \"". $value . "\"";
        $comma_2 = ", ";
    }
    echo "}";
    $comma_1 = ", \n";
}