What specific headers should be included in a POST request to an IIS 5.0 server for SSL encryption in PHP?

To send a POST request to an IIS 5.0 server for SSL encryption in PHP, you need to include the "Content-Type" header with the value "application/x-www-form-urlencoded" to specify the format of the data being sent. Additionally, you should include the "Host" header with the server's domain name or IP address to specify the target server. Finally, you need to include the "Connection" header with the value "close" to indicate that the connection should be closed after the request is completed. 

$url = 'https://example.com/api';
$data = http_build_query(array('key1' => 'value1', 'key2' => 'value2'));

$options = array(
    'http' => array(
        'header'  => "Content-Type: application/x-www-form-urlencoded\r\n" .
                     "Host: example.com\r\n" .
                     "Connection: close\r\n",
        'method'  => 'POST',
        'content' => $data
    )
);

$context  = stream_context_create($options);
$response = file_get_contents($url, false, $context);

echo $response;

Keywords

POST request headers IIS 5.0 server SSL encryption PHP

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