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PK 7��Z���m m composer.jsonnu �[��� { "name": "psr/http-message", "description": "Common interface for HTTP messages", "keywords": ["psr", "psr-7", "http", "http-message", "request", "response"], "homepage": "https://github.com/php-fig/http-message", "license": "MIT", "authors": [ { "name": "PHP-FIG", "homepage": "http://www.php-fig.org/" } ], "require": { "php": ">=5.3.0" }, "autoload": { "psr-4": { "Psr\\Http\\Message\\": "src/" } }, "extra": { "branch-alias": { "dev-master": "1.0.x-dev" } } } PK 7��Z�:\Y3 3 CHANGELOG.mdnu �[��� # Changelog All notable changes to this project will be documented in this file, in reverse chronological order by release. ## 1.0.1 - 2016-08-06 ### Added - Nothing. ### Deprecated - Nothing. ### Removed - Nothing. ### Fixed - Updated all `@return self` annotation references in interfaces to use `@return static`, which more closelly follows the semantics of the specification. - Updated the `MessageInterface::getHeaders()` return annotation to use the value `string[][]`, indicating the format is a nested array of strings. - Updated the `@link` annotation for `RequestInterface::withRequestTarget()` to point to the correct section of RFC 7230. - Updated the `ServerRequestInterface::withUploadedFiles()` parameter annotation to add the parameter name (`$uploadedFiles`). - Updated a `@throws` annotation for the `UploadedFileInterface::moveTo()` method to correctly reference the method parameter (it was referencing an incorrect parameter name previously). ## 1.0.0 - 2016-05-18 Initial stable release; reflects accepted PSR-7 specification. PK 7��Z?.��?1 ?1 src/UriInterface.phpnu �[��� <?php namespace Psr\Http\Message; /** * Value object representing a URI. * * This interface is meant to represent URIs according to RFC 3986 and to * provide methods for most common operations. Additional functionality for * working with URIs can be provided on top of the interface or externally. * Its primary use is for HTTP requests, but may also be used in other * contexts. * * Instances of this interface are considered immutable; all methods that * might change state MUST be implemented such that they retain the internal * state of the current instance and return an instance that contains the * changed state. * * Typically the Host header will be also be present in the request message. * For server-side requests, the scheme will typically be discoverable in the * server parameters. * * @link http://tools.ietf.org/html/rfc3986 (the URI specification) */ interface UriInterface { /** * Retrieve the scheme component of the URI. * * If no scheme is present, this method MUST return an empty string. * * The value returned MUST be normalized to lowercase, per RFC 3986 * Section 3.1. * * The trailing ":" character is not part of the scheme and MUST NOT be * added. * * @see https://tools.ietf.org/html/rfc3986#section-3.1 * @return string The URI scheme. */ public function getScheme(); /** * Retrieve the authority component of the URI. * * If no authority information is present, this method MUST return an empty * string. * * The authority syntax of the URI is: * * <pre> * [user-info@]host[:port] * </pre> * * If the port component is not set or is the standard port for the current * scheme, it SHOULD NOT be included. * * @see https://tools.ietf.org/html/rfc3986#section-3.2 * @return string The URI authority, in "[user-info@]host[:port]" format. */ public function getAuthority(); /** * Retrieve the user information component of the URI. * * If no user information is present, this method MUST return an empty * string. * * If a user is present in the URI, this will return that value; * additionally, if the password is also present, it will be appended to the * user value, with a colon (":") separating the values. * * The trailing "@" character is not part of the user information and MUST * NOT be added. * * @return string The URI user information, in "username[:password]" format. */ public function getUserInfo(); /** * Retrieve the host component of the URI. * * If no host is present, this method MUST return an empty string. * * The value returned MUST be normalized to lowercase, per RFC 3986 * Section 3.2.2. * * @see http://tools.ietf.org/html/rfc3986#section-3.2.2 * @return string The URI host. */ public function getHost(); /** * Retrieve the port component of the URI. * * If a port is present, and it is non-standard for the current scheme, * this method MUST return it as an integer. If the port is the standard port * used with the current scheme, this method SHOULD return null. * * If no port is present, and no scheme is present, this method MUST return * a null value. * * If no port is present, but a scheme is present, this method MAY return * the standard port for that scheme, but SHOULD return null. * * @return null|int The URI port. */ public function getPort(); /** * Retrieve the path component of the URI. * * The path can either be empty or absolute (starting with a slash) or * rootless (not starting with a slash). Implementations MUST support all * three syntaxes. * * Normally, the empty path "" and absolute path "/" are considered equal as * defined in RFC 7230 Section 2.7.3. But this method MUST NOT automatically * do this normalization because in contexts with a trimmed base path, e.g. * the front controller, this difference becomes significant. It's the task * of the user to handle both "" and "/". * * The value returned MUST be percent-encoded, but MUST NOT double-encode * any characters. To determine what characters to encode, please refer to * RFC 3986, Sections 2 and 3.3. * * As an example, if the value should include a slash ("/") not intended as * delimiter between path segments, that value MUST be passed in encoded * form (e.g., "%2F") to the instance. * * @see https://tools.ietf.org/html/rfc3986#section-2 * @see https://tools.ietf.org/html/rfc3986#section-3.3 * @return string The URI path. */ public function getPath(); /** * Retrieve the query string of the URI. * * If no query string is present, this method MUST return an empty string. * * The leading "?" character is not part of the query and MUST NOT be * added. * * The value returned MUST be percent-encoded, but MUST NOT double-encode * any characters. To determine what characters to encode, please refer to * RFC 3986, Sections 2 and 3.4. * * As an example, if a value in a key/value pair of the query string should * include an ampersand ("&") not intended as a delimiter between values, * that value MUST be passed in encoded form (e.g., "%26") to the instance. * * @see https://tools.ietf.org/html/rfc3986#section-2 * @see https://tools.ietf.org/html/rfc3986#section-3.4 * @return string The URI query string. */ public function getQuery(); /** * Retrieve the fragment component of the URI. * * If no fragment is present, this method MUST return an empty string. * * The leading "#" character is not part of the fragment and MUST NOT be * added. * * The value returned MUST be percent-encoded, but MUST NOT double-encode * any characters. To determine what characters to encode, please refer to * RFC 3986, Sections 2 and 3.5. * * @see https://tools.ietf.org/html/rfc3986#section-2 * @see https://tools.ietf.org/html/rfc3986#section-3.5 * @return string The URI fragment. */ public function getFragment(); /** * Return an instance with the specified scheme. * * This method MUST retain the state of the current instance, and return * an instance that contains the specified scheme. * * Implementations MUST support the schemes "http" and "https" case * insensitively, and MAY accommodate other schemes if required. * * An empty scheme is equivalent to removing the scheme. * * @param string $scheme The scheme to use with the new instance. * @return static A new instance with the specified scheme. * @throws \InvalidArgumentException for invalid or unsupported schemes. */ public function withScheme($scheme); /** * Return an instance with the specified user information. * * This method MUST retain the state of the current instance, and return * an instance that contains the specified user information. * * Password is optional, but the user information MUST include the * user; an empty string for the user is equivalent to removing user * information. * * @param string $user The user name to use for authority. * @param null|string $password The password associated with $user. * @return static A new instance with the specified user information. */ public function withUserInfo($user, $password = null); /** * Return an instance with the specified host. * * This method MUST retain the state of the current instance, and return * an instance that contains the specified host. * * An empty host value is equivalent to removing the host. * * @param string $host The hostname to use with the new instance. * @return static A new instance with the specified host. * @throws \InvalidArgumentException for invalid hostnames. */ public function withHost($host); /** * Return an instance with the specified port. * * This method MUST retain the state of the current instance, and return * an instance that contains the specified port. * * Implementations MUST raise an exception for ports outside the * established TCP and UDP port ranges. * * A null value provided for the port is equivalent to removing the port * information. * * @param null|int $port The port to use with the new instance; a null value * removes the port information. * @return static A new instance with the specified port. * @throws \InvalidArgumentException for invalid ports. */ public function withPort($port); /** * Return an instance with the specified path. * * This method MUST retain the state of the current instance, and return * an instance that contains the specified path. * * The path can either be empty or absolute (starting with a slash) or * rootless (not starting with a slash). Implementations MUST support all * three syntaxes. * * If the path is intended to be domain-relative rather than path relative then * it must begin with a slash ("/"). Paths not starting with a slash ("/") * are assumed to be relative to some base path known to the application or * consumer. * * Users can provide both encoded and decoded path characters. * Implementations ensure the correct encoding as outlined in getPath(). * * @param string $path The path to use with the new instance. * @return static A new instance with the specified path. * @throws \InvalidArgumentException for invalid paths. */ public function withPath($path); /** * Return an instance with the specified query string. * * This method MUST retain the state of the current instance, and return * an instance that contains the specified query string. * * Users can provide both encoded and decoded query characters. * Implementations ensure the correct encoding as outlined in getQuery(). * * An empty query string value is equivalent to removing the query string. * * @param string $query The query string to use with the new instance. * @return static A new instance with the specified query string. * @throws \InvalidArgumentException for invalid query strings. */ public function withQuery($query); /** * Return an instance with the specified URI fragment. * * This method MUST retain the state of the current instance, and return * an instance that contains the specified URI fragment. * * Users can provide both encoded and decoded fragment characters. * Implementations ensure the correct encoding as outlined in getFragment(). * * An empty fragment value is equivalent to removing the fragment. * * @param string $fragment The fragment to use with the new instance. * @return static A new instance with the specified fragment. */ public function withFragment($fragment); /** * Return the string representation as a URI reference. * * Depending on which components of the URI are present, the resulting * string is either a full URI or relative reference according to RFC 3986, * Section 4.1. The method concatenates the various components of the URI, * using the appropriate delimiters: * * - If a scheme is present, it MUST be suffixed by ":". * - If an authority is present, it MUST be prefixed by "//". * - The path can be concatenated without delimiters. But there are two * cases where the path has to be adjusted to make the URI reference * valid as PHP does not allow to throw an exception in __toString(): * - If the path is rootless and an authority is present, the path MUST * be prefixed by "/". * - If the path is starting with more than one "/" and no authority is * present, the starting slashes MUST be reduced to one. * - If a query is present, it MUST be prefixed by "?". * - If a fragment is present, it MUST be prefixed by "#". * * @see http://tools.ietf.org/html/rfc3986#section-4.1 * @return string */ public function __toString(); } PK 7��Z�z /� � src/MessageInterface.phpnu �[��� <?php namespace Psr\Http\Message; /** * HTTP messages consist of requests from a client to a server and responses * from a server to a client. This interface defines the methods common to * each. * * Messages 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. * * @link http://www.ietf.org/rfc/rfc7230.txt * @link http://www.ietf.org/rfc/rfc7231.txt */ interface MessageInterface { /** * Retrieves the HTTP protocol version as a string. * * The string MUST contain only the HTTP version number (e.g., "1.1", "1.0"). * * @return string HTTP protocol version. */ public function getProtocolVersion(); /** * Return an instance with the specified HTTP protocol version. * * The version string MUST contain only the HTTP version number (e.g., * "1.1", "1.0"). * * 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 protocol version. * * @param string $version HTTP protocol version * @return static */ public function withProtocolVersion($version); /** * Retrieves all message header values. * * The keys represent the header name as it will be sent over the wire, and * each value is an array of strings associated with the header. * * // Represent the headers as a string * foreach ($message->getHeaders() as $name => $values) { * echo $name . ": " . implode(", ", $values); * } * * // Emit headers iteratively: * foreach ($message->getHeaders() as $name => $values) { * foreach ($values as $value) { * header(sprintf('%s: %s', $name, $value), false); * } * } * * While header names are not case-sensitive, getHeaders() will preserve the * exact case in which headers were originally specified. * * @return string[][] Returns an associative array of the message's headers. Each * key MUST be a header name, and each value MUST be an array of strings * for that header. */ public function getHeaders(); /** * Checks if a header exists by the given case-insensitive name. * * @param string $name Case-insensitive header field name. * @return bool Returns true if any header names match the given header * name using a case-insensitive string comparison. Returns false if * no matching header name is found in the message. */ public function hasHeader($name); /** * Retrieves a message header value by the given case-insensitive name. * * This method returns an array of all the header values of the given * case-insensitive header name. * * If the header does not appear in the message, this method MUST return an * empty array. * * @param string $name Case-insensitive header field name. * @return string[] An array of string values as provided for the given * header. If the header does not appear in the message, this method MUST * return an empty array. */ public function getHeader($name); /** * Retrieves a comma-separated string of the values for a single header. * * This method returns all of the header values of the given * case-insensitive header name as a string concatenated together using * a comma. * * NOTE: Not all header values may be appropriately represented using * comma concatenation. For such headers, use getHeader() instead * and supply your own delimiter when concatenating. * * If the header does not appear in the message, this method MUST return * an empty string. * * @param string $name Case-insensitive header field name. * @return string A string of values as provided for the given header * concatenated together using a comma. If the header does not appear in * the message, this method MUST return an empty string. */ public function getHeaderLine($name); /** * Return an instance with the provided value replacing the specified header. * * While header names are case-insensitive, the casing of the header will * be preserved by this function, and returned from getHeaders(). * * 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 and/or updated header and value. * * @param string $name Case-insensitive header field name. * @param string|string[] $value Header value(s). * @return static * @throws \InvalidArgumentException for invalid header names or values. */ public function withHeader($name, $value); /** * Return an instance with the specified header appended with the given value. * * Existing values for the specified header will be maintained. The new * value(s) will be appended to the existing list. If the header did not * exist previously, it will be added. * * 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 header and/or value. * * @param string $name Case-insensitive header field name to add. * @param string|string[] $value Header value(s). * @return static * @throws \InvalidArgumentException for invalid header names or values. */ public function withAddedHeader($name, $value); /** * Return an instance without the specified header. * * Header resolution MUST be done without case-sensitivity. * * This method MUST be implemented in such a way as to retain the * immutability of the message, and MUST return an instance that removes * the named header. * * @param string $name Case-insensitive header field name to remove. * @return static */ public function withoutHeader($name); /** * Gets the body of the message. * * @return StreamInterface Returns the body as a stream. */ public function getBody(); /** * Return an instance with the specified message body. * * The body MUST be a StreamInterface object. * * This method MUST be implemented in such a way as to retain the * immutability of the message, and MUST return a new instance that has the * new body stream. * * @param StreamInterface $body Body. * @return static * @throws \InvalidArgumentException When the body is not valid. */ public function withBody(StreamInterface $body); } PK 7��Z�-{ src/ResponseInterface.phpnu �[��� <?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(); } PK 7��Z� ��� � src/RequestInterface.phpnu �[��� <?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(); /** * 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 mixed $requestTarget * @return static */ public function withRequestTarget($requestTarget); /** * Retrieves the HTTP method of the request. * * @return string Returns the request method. */ public function getMethod(); /** * 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 $method Case-sensitive method. * @return static * @throws \InvalidArgumentException for invalid HTTP methods. */ public function withMethod($method); /** * 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(); /** * 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, $preserveHost = false); } PK 7��Z㭢vQ Q src/UploadedFileInterface.phpnu �[��� <?php namespace Psr\Http\Message; /** * Value object representing a file uploaded through an HTTP request. * * Instances of this interface are considered immutable; all methods that * might change state MUST be implemented such that they retain the internal * state of the current instance and return an instance that contains the * changed state. */ interface UploadedFileInterface { /** * Retrieve a stream representing the uploaded file. * * This method MUST return a StreamInterface instance, representing the * uploaded file. The purpose of this method is to allow utilizing native PHP * stream functionality to manipulate the file upload, such as * stream_copy_to_stream() (though the result will need to be decorated in a * native PHP stream wrapper to work with such functions). * * If the moveTo() method has been called previously, this method MUST raise * an exception. * * @return StreamInterface Stream representation of the uploaded file. * @throws \RuntimeException in cases when no stream is available or can be * created. */ public function getStream(); /** * Move the uploaded file to a new location. * * Use this method as an alternative to move_uploaded_file(). This method is * guaranteed to work in both SAPI and non-SAPI environments. * Implementations must determine which environment they are in, and use the * appropriate method (move_uploaded_file(), rename(), or a stream * operation) to perform the operation. * * $targetPath may be an absolute path, or a relative path. If it is a * relative path, resolution should be the same as used by PHP's rename() * function. * * The original file or stream MUST be removed on completion. * * If this method is called more than once, any subsequent calls MUST raise * an exception. * * When used in an SAPI environment where $_FILES is populated, when writing * files via moveTo(), is_uploaded_file() and move_uploaded_file() SHOULD be * used to ensure permissions and upload status are verified correctly. * * If you wish to move to a stream, use getStream(), as SAPI operations * cannot guarantee writing to stream destinations. * * @see http://php.net/is_uploaded_file * @see http://php.net/move_uploaded_file * @param string $targetPath Path to which to move the uploaded file. * @throws \InvalidArgumentException if the $targetPath specified is invalid. * @throws \RuntimeException on any error during the move operation, or on * the second or subsequent call to the method. */ public function moveTo($targetPath); /** * Retrieve the file size. * * Implementations SHOULD return the value stored in the "size" key of * the file in the $_FILES array if available, as PHP calculates this based * on the actual size transmitted. * * @return int|null The file size in bytes or null if unknown. */ public function getSize(); /** * Retrieve the error associated with the uploaded file. * * The return value MUST be one of PHP's UPLOAD_ERR_XXX constants. * * If the file was uploaded successfully, this method MUST return * UPLOAD_ERR_OK. * * Implementations SHOULD return the value stored in the "error" key of * the file in the $_FILES array. * * @see http://php.net/manual/en/features.file-upload.errors.php * @return int One of PHP's UPLOAD_ERR_XXX constants. */ public function getError(); /** * Retrieve the filename sent by the client. * * Do not trust the value returned by this method. A client could send * a malicious filename with the intention to corrupt or hack your * application. * * Implementations SHOULD return the value stored in the "name" key of * the file in the $_FILES array. * * @return string|null The filename sent by the client or null if none * was provided. */ public function getClientFilename(); /** * Retrieve the media type sent by the client. * * Do not trust the value returned by this method. A client could send * a malicious media type with the intention to corrupt or hack your * application. * * Implementations SHOULD return the value stored in the "type" key of * the file in the $_FILES array. * * @return string|null The media type sent by the client or null if none * was provided. */ public function getClientMediaType(); } PK 7��Z=fbr� � src/StreamInterface.phpnu �[��� <?php namespace Psr\Http\Message; /** * Describes a data stream. * * Typically, an instance will wrap a PHP stream; this interface provides * a wrapper around the most common operations, including serialization of * the entire stream to a string. */ interface StreamInterface { /** * Reads all data from the stream into a string, from the beginning to end. * * This method MUST attempt to seek to the beginning of the stream before * reading data and read the stream until the end is reached. * * Warning: This could attempt to load a large amount of data into memory. * * This method MUST NOT raise an exception in order to conform with PHP's * string casting operations. * * @see http://php.net/manual/en/language.oop5.magic.php#object.tostring * @return string */ public function __toString(); /** * Closes the stream and any underlying resources. * * @return void */ public function close(); /** * Separates any underlying resources from the stream. * * After the stream has been detached, the stream is in an unusable state. * * @return resource|null Underlying PHP stream, if any */ public function detach(); /** * Get the size of the stream if known. * * @return int|null Returns the size in bytes if known, or null if unknown. */ public function getSize(); /** * Returns the current position of the file read/write pointer * * @return int Position of the file pointer * @throws \RuntimeException on error. */ public function tell(); /** * Returns true if the stream is at the end of the stream. * * @return bool */ public function eof(); /** * Returns whether or not the stream is seekable. * * @return bool */ public function isSeekable(); /** * Seek to a position in the stream. * * @link http://www.php.net/manual/en/function.fseek.php * @param int $offset Stream offset * @param int $whence Specifies how the cursor position will be calculated * based on the seek offset. Valid values are identical to the built-in * PHP $whence values for `fseek()`. SEEK_SET: Set position equal to * offset bytes SEEK_CUR: Set position to current location plus offset * SEEK_END: Set position to end-of-stream plus offset. * @throws \RuntimeException on failure. */ public function seek($offset, $whence = SEEK_SET); /** * Seek to the beginning of the stream. * * If the stream is not seekable, this method will raise an exception; * otherwise, it will perform a seek(0). * * @see seek() * @link http://www.php.net/manual/en/function.fseek.php * @throws \RuntimeException on failure. */ public function rewind(); /** * Returns whether or not the stream is writable. * * @return bool */ public function isWritable(); /** * Write data to the stream. * * @param string $string The string that is to be written. * @return int Returns the number of bytes written to the stream. * @throws \RuntimeException on failure. */ public function write($string); /** * Returns whether or not the stream is readable. * * @return bool */ public function isReadable(); /** * Read data from the stream. * * @param int $length Read up to $length bytes from the object and return * them. Fewer than $length bytes may be returned if underlying stream * call returns fewer bytes. * @return string Returns the data read from the stream, or an empty string * if no bytes are available. * @throws \RuntimeException if an error occurs. */ public function read($length); /** * Returns the remaining contents in a string * * @return string * @throws \RuntimeException if unable to read or an error occurs while * reading. */ public function getContents(); /** * Get stream metadata as an associative array or retrieve a specific key. * * The keys returned are identical to the keys returned from PHP's * stream_get_meta_data() function. * * @link http://php.net/manual/en/function.stream-get-meta-data.php * @param string $key Specific metadata to retrieve. * @return array|mixed|null Returns an associative array if no key is * provided. Returns a specific key value if a key is provided and the * value is found, or null if the key is not found. */ public function getMetadata($key = null); } PK 7��Z_�r'