Invalid argument supplied for foreach() in sqlinfo.php on line 28

if($row = $result->fetch_assoc() && $result->num_rows === 1){
  foreach($row as $key => $value){ //error

$(document).ready(function () {
$(".grid").on("click", ".edit", function (){
      var albumId = $(this).siblings(".grid-info").attr("id");
      var imageId = $(this).siblings("img").attr("id");
      var request = (albumId == '') ? {requestType: 'Album', id: albumId} : {requestType: 'Image', id: imageId};
      var getSQLInfo = $.ajax({
        url: '../P3_M2/ajax/sqlinfo.php',
        method: 'post',
        data: request,
        dataType: 'json',
        error: function(error) {
          console.log(error);
        }
        });

});

<?php
require_once('../configsql.php');

$queryFor = array(
  'Album' => 'SELECT * FROM Album WHERE id = ?',
  'Image' => 'SELECT * FROM Image WHERE id = ?');

$requestType = filter_input(INPUT_POST, 'requestType', FILTER_SANITIZE_STRING);
  if (empty($requestType)) {
    echo 'Missing requestType.';
    die();
  }

$id = $mysqli->real_escape_string($_POST["id"]);

$info= array();
$stmt = $mysqli->prepare($queryFor[$requestType]);
$stmt->bind_param('i', $id);
$executed = $stmt->execute();
if(!$executed){
  echo "SQL query $querFor[$requestType] not executed";
  exit();
}
$result = $stmt->get_result();
$stmt->close();
if($row = $result->fetch_assoc() && $result->num_rows === 1){
  foreach($row as $key => $value){ //error here
    //Transform SQL field names to form input names for html
    $key = str_replace('_', '-', $key);
    if($key === 'title'){
      $key = strtolower($requestType).'-'.$key;
    }
    $info[$key] = $value;
  }
}

// Send back the array as json
echo json_encode($info);

?>