require_once 'HTTP/Client.php';
void HTTP_Client::setDefaultHeader (mixed $name [, string $value = NULL])
void HTTP_Client::setDefaultHeader
These are standard HTTP headers that will be sent by all created HTTP_Request objects.
header name or array ('header name' => 'header value')
header value if $name is not an array
throws no exceptions thrown
This function can not be called statically.