$arr = array(
   'toemail'=>$v->agent_primary_email,
   'agentname'=>$v->agent_firstname,
   'agentid'=>$v->agent_id,
   'subject'=>'The details of total number of properties saved by your clients',
   'totalprop'=>$v->prop_count
);
echo json_encode($arr);exit;
The output looks like this
{"toemail":"abc@gmail.com","agentname":"john","agentid":"110012","subject":"The    details of total number of properties saved by your clients","totalprop":"131"}
But what changes should i have make, so that the output looks like this
{"toemail":"abc@gmail.com",
 "agentname":"john",
 "agentid":"110012",
 "subject":"The details of total number of properties saved by your                     clients",
 "totalprop":"131"}
 
    