How to fix JSON error?

Question

PHP

The task is simple - to parse the podcast feed. Here is the code:

<?php
$response = array("error" => FALSE);
$response["feed"] = array();
$url = "https://mayk.podfm.ru/rss";
$xml = simplexml_load_file($url);
for($i = 0; $i < 20; $i++){

   $title = $xml->channel->item[$i]->title;
   $pubDate = $xml->channel->item[$i]->pubDate;
   $enclosure = $xml->channel->item[$i]->enclosure['url'];
   
   $url = rtrim($enclosure, "?channel=rss");

   $product = array();
   $product["pod"]["title"] = $title;
   $product["pod"]["date"] = $pubDate;
   $product["pod"]["song"] = $url;

   array_push($response["feed"], $product);
}

   echo json_encode($response, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE);
?>

But at the output I get
Where does "0" come from?

Answer 1

Where does "0" come from?

do

$title = $xml->channel->item[$i]->title;var_dump($title);exit;

and understand.

How to fix

$title = (string)$xml->channel->item[$i]->title;if fast.