php - How to create comma separated list from array and return as json enode array -

i trying create json comma delimited string.now code this

 $sql="select pri_name nri_privilege";  $getvalue=mysqli_query($mysqli,$sql);  while($result=mysqli_fetch_assoc($getvalue))  {       $getallresults[]=$result;  }  foreach($getallresults $rereult)  {            print_r($rereult);     name =$rereult['pri_name'];     name .=$name .',';     //echo $name;     //echo json_encode($name);  } 

i fetching data database , loop inside foreach. how create json comma delimited string?

based on title of post described.

$array = ["foo", "bar", "bat"]; //some array form e.g. db $glued = implode(",", $array); //implode , $json  = json_encode($glued); //and json encode 

what think want this:

$array = ["foo", "bar", "bat"]; //some array form e.g. db $json  = json_encode($array); //json encode array without step 2.  

guess want send json encoded array on wire somewhere else. in case no need implode or explode.