Problem with json getting data from php?

Question

PHP

Hello, can someone explain one thing to me. why when passing data via ajax with php when i create json string in this way

echo json_encode($s = array(array('grief' => $buys1,'skyblock' => $buys2),array('grief' => $buys1+1,'skyblock' => $buys2+1)));

Everything works fine, but I need to make this list separately

$s = array(array('grief' => $buys1,'skyblock' => $buys2),array('grief' => $buys1+1,'skyblock' => $buys2+1));
    echo json_encode($s);

as a function

function fsuccess(datadel){
  var dat = JSON.parse(datadel);

starts throwing the error "SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data"
What could be the problem?

Answer 1

F12 and see what comes over the network and how it differs in two cases