How can the PHP code be modified to ensure that the data fetched through a proxy is in XML format and not as a continuous string?

When fetching data through a proxy in PHP, it's important to specify the `Accept` header to ensure that the response is in XML format. This can be done by setting the `CURLOPT_HTTPHEADER` option in the cURL request to include the `Accept: application/xml` header. This tells the server that the client expects XML data in the response. 

<?php
$proxy = 'proxy_ip:proxy_port';
$url = 'http://example.com/data.xml';

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_PROXY, $proxy);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Accept: application/xml'));

$response = curl_exec($ch);

if(curl_errno($ch)){
    echo 'Error: ' . curl_error($ch);
}

curl_close($ch);

$xml = simplexml_load_string($response);
// Now $xml contains the fetched data in XML format
?>

Keywords

PHP proxy XML format data fetching string conversion

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