fuel/fuel/core/classes/request/driver.php
public function get_headers()
	{
		$headers = array();
		foreach ($this->headers as $key => $value)
		{
			$headers[] = is_int($key) ? $value : $key.': '.$value;
		}

		return $headers;
	}
public function get_headers()
	{
		$headers = array();
		foreach ($this->headers as $key => $value)
		{
			$headers[] = is_int($key) ? $value : $key.': '.$value;
		}

		return $headers;
	}
public function get_headers ( ) { $ headers = array ( ) ; foreach ( $ this -> headers as $ key => $ value ) { $ headers [ ] = is_int ( $ key ) ? $ value : $ key . ': ' . $ value ; } return $ headers ; }
Collect all headers and parse into consistent string

@return  array
Collect all headers and parse into consistent string