/**
* Retrieve a single derived request attribute.
*
* Retrieves a single derived request attribute as described in
* getAttributes(). If the attribute has not been previously set, returns
* the default value as provided.
*
* This method obviates the need for a hasAttribute() method, as it allows
* specifying a default value to return if the attribute is not found.
*
* @see getAttributes()
*
* @param string $name The attribute name.
* @param mixed $default Default value to return if the attribute does not exist.
*
* @return mixed
*/
public function getAttribute($name, $default = null)
{
return $this->attributes->get($name, $default);
}
/**
* Get HTTP header key as originally specified.
*
* @param string $key The case-insensitive header name
* @param mixed $default The default value if key does not exist
*
* @return string
*/
public function getOriginalKey($key, $default = null)
{
if ($this->has($key)) {
return parent::get($this->normalizeKey($key))['originalKey'];
}
return $default;
}