[PHP] Błąd Fatal error: Cannot use string offset as an array in Opcje

[-macis-]

Mam dwa błędy, da się coś z nimi zrobic ?
Warning: Invalid argument supplied for foreach() in .... on line 16

Fatal error: Cannot use string offset as an array in ... on line 27

[PHP] pobierz, plaintext 
<?php
include('config.php');
 
if(isset($_GET['name'])){
$name=$_GET['name'];
}else{
exit;
};
if(isset($_GET['artist'])){
$artist=$_GET['artist'];
}else{
exit;
};
$content=object2array(simplexml_load_file('http://ws.audioscrobbler.com/1.0/track/'.$artist.'/'.$name.'/similar.xml'));
?><h1>Podobne</h1>
<?foreach($content['track'] as $value){
?>
<a href="artist.php?name=<?=urlencode($value["artist"]["name"])?>"><?=$value["artist"]["name"]?></a>-<a href="track.php?name=<?=urlencode($value['name'])?>&artist=<?=urlencode($value["artist"]["name"])?>"><?=$value['name']?></a><?=$value["match"]?><br>
<?
};
?>
<h1>Najwięksi</h1>
<?
$content=object2array(simplexml_load_file('http://ws.audioscrobbler.com/1.0/track/'.$artist.'/'.$name.'/fans.xml'));
foreach($content['user'] as $value){
?>
<?=$value["@attributes"]['username']?>(<?=$value['weight']?>)<Br><?
};
?>
<h1>Najwięksi</h1>
<?
$content=object2array(simplexml_load_file('http://ws.audioscrobbler.com/1.0/track/'.$artist.'/'.$name.'/toptags.xml'));
foreach($content['tag'] as $value){
?>
<a href="tag.php?name=<?=urlencode($value['name'])?>"><?=$value['name']?></a><br><?
};
[PHP] pobierz, plaintext