/**
* Checks if a header exists by the given case-insensitive name.
*
* @param string $name Case-insensitive header field name.
*
* @return bool Returns true if any header names match the given header
* name using a case-insensitive string comparison. Returns false if
* no matching header name is found in the message.
*/
public function hasHeader($name)
{
if (strtolower($name) === 'host' && ($this->uri && $this->uri->getHost())) {
$this->headerNames['host'] = $name;
$this->headers[$name] = array($this->getHostFromUri());
}
return parent::hasHeader($name);
}
