public function getRequestHeader($name)
    {
        return (isset($this->requestHeaders[$name])) ? $this->requestHeaders[$name] : null;
    }
public function getRequestHeader($name)
    {
        return (isset($this->requestHeaders[$name])) ? $this->requestHeaders[$name] : null;
    }
public function getRequestHeader ( $ name ) { return ( isset ( $ this -> requestHeaders [ $ name ] ) ) ? $ this -> requestHeaders [ $ name ] : null ; }
Get a request header.

@param (string) $name

@since 3.0.0

@return mixed
Get a request header .