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<?php namespace Psr\Http\Message; /** * Representation of an outgoing, server-side response. * * Per the HTTP specification, this interface includes properties for * each of the following: * * - Protocol version * - Status code and reason phrase * - Headers * - Message body * * Responses are considered immutable; all methods that might change state MUST * be implemented such that they retain the internal state of the current * message and return an instance that contains the changed state. / interface ResponseInterface extends MessageInterface { /* * Gets the response status code. * * The status code is a 3-digit integer result code of the server's attempt * to understand and satisfy the request. * * @return int Status code. / public function getStatusCode(); /* * Return an instance with the specified status code and, optionally, reason phrase. * * If no reason phrase is specified, implementations MAY choose to default * to the RFC 7231 or IANA recommended reason phrase for the response's * status code. * * This method MUST be implemented in such a way as to retain the * immutability of the message, and MUST return an instance that has the * updated status and reason phrase. * * @link http://tools.ietf.org/html/rfc7231#section-6 * @link http://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml * @param int $code The 3-digit integer result code to set. * @param string $reasonPhrase The reason phrase to use with the * provided status code; if none is provided, implementations MAY * use the defaults as suggested in the HTTP specification. * @return static * @throws \InvalidArgumentException For invalid status code arguments. / public function withStatus($code, $reasonPhrase = ''); /* * Gets the response reason phrase associated with the status code. * * Because a reason phrase is not a required element in a response * status line, the reason phrase value MAY be null. Implementations MAY * choose to return the default RFC 7231 recommended reason phrase (or those * listed in the IANA HTTP Status Code Registry) for the response's * status code. * * @link http://tools.ietf.org/html/rfc7231#section-6 * @link http://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml * @return string Reason phrase; must return an empty string if none present. */ public function getReasonPhrase(); }