How can PHP scripts authenticate with a server using digest authentication?

To authenticate with a server using digest authentication in PHP, you can use the `curl` library to send an HTTP request with the appropriate headers. You need to include the username and password in the request headers along with the necessary digest authentication parameters. 

$username = 'username';
$password = 'password';
$url = 'https://example.com/api';

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_DIGEST);
curl_setopt($ch, CURLOPT_USERPWD, "$username:$password");

$response = curl_exec($ch);

if($response === false){
    echo 'Error: ' . curl_error($ch);
} else {
    echo $response;
}

curl_close($ch);

Keywords

PHP digest authentication cURL HTTP headers authentication headers

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