name : RequestInterface.php <?php namespace Psr\Http\Message; /** * Representation of an outgoing, client-side request. * * Per the HTTP specification, this interface includes properties for * each of the following: * * - Protocol version * - HTTP method * - URI * - Headers * - Message body * * During construction, implementations MUST attempt to set the Host header from * a provided URI if no Host header is provided. * * Requests 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 RequestInterface extends MessageInterface { /** * Retrieves the message's request target. * * Retrieves the message's request-target either as it will appear (for * clients), as it appeared at request (for servers), or as it was * specified for the instance (see withRequestTarget()). * * In most cases, this will be the origin-form of the composed URI, * unless a value was provided to the concrete implementation (see * withRequestTarget() below). * * If no URI is available, and no request-target has been specifically * provided, this method MUST return the string "/". * * @return string */ public function getRequestTarget(): string; /** * Return an instance with the specific request-target. * * If the request needs a non-origin-form request-target — e.g., for * specifying an absolute-form, authority-form, or asterisk-form — * this method may be used to create an instance with the specified * request-target, verbatim. * * 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 * changed request target. * * @link http://tools.ietf.org/html/rfc7230#section-5.3 (for the various * request-target forms allowed in request messages) * @param string $requestTarget * @return static */ public function withRequestTarget(string $requestTarget): RequestInterface; /** * Retrieves the HTTP method of the request. * * @return string Returns the request method. */ public function getMethod(): string; /** * Return an instance with the provided HTTP method. * * While HTTP method names are typically all uppercase characters, HTTP * method names are case-sensitive and thus implementations SHOULD NOT * modify the given string. * * 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 * changed request method. * * @param string $method Case-sensitive method. * @return static * @throws \InvalidArgumentException for invalid HTTP methods. */ public function withMethod(string $method): RequestInterface; /** * Retrieves the URI instance. * * This method MUST return a UriInterface instance. * * @link http://tools.ietf.org/html/rfc3986#section-4.3 * @return UriInterface Returns a UriInterface instance * representing the URI of the request. */ public function getUri(): UriInterface; /** * Returns an instance with the provided URI. * * This method MUST update the Host header of the returned request by * default if the URI contains a host component. If the URI does not * contain a host component, any pre-existing Host header MUST be carried * over to the returned request. * * You can opt-in to preserving the original state of the Host header by * setting `$preserveHost` to `true`. When `$preserveHost` is set to * `true`, this method interacts with the Host header in the following ways: * * - If the Host header is missing or empty, and the new URI contains * a host component, this method MUST update the Host header in the returned * request. * - If the Host header is missing or empty, and the new URI does not contain a * host component, this method MUST NOT update the Host header in the returned * request. * - If a Host header is present and non-empty, this method MUST NOT update * the Host header in the returned request. * * 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 * new UriInterface instance. * * @link http://tools.ietf.org/html/rfc3986#section-4.3 * @param UriInterface $uri New request URI to use. * @param bool $preserveHost Preserve the original state of the Host header. * @return static */ public function withUri(UriInterface $uri, bool $preserveHost = false): RequestInterface; }