Class AppendStream

Reads from multiple streams, one after the other.

This is a read-only stream decorator.

GuzzleHttp\Psr7\AppendStream implements Psr\Http\Message\StreamInterface

Namespace: GuzzleHttp\Psr7
Located at src/AppendStream.php

Methods summary
`public`	# `__construct( array $streams = [] )` Parameters `$streams` Streams to decorate. Each stream must be readable.
`public string`	# `__toString( )` Reads all data from the stream into a string, from the beginning to end. 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. Returns string See http://php.net/manual/en/language.oop5.magic.php#object.tostring Implementation of `Psr\Http\Message\StreamInterface::__toString()`
`public`	# `addStream( Psr\Http\Message\StreamInterface $stream )` Add a stream to the AppendStream Add a stream to the AppendStream Parameters `$stream` Stream to append. Must be readable. Throws InvalidArgumentException if the stream is not readable
`public string`	# `getContents( )` Returns the remaining contents in a string Returns the remaining contents in a string Returns string Throws RuntimeException if unable to read or an error occurs while reading. Implementation of `Psr\Http\Message\StreamInterface::getContents()`
`public`	# `close( )` Closes each attached stream. Closes each attached stream. Implementation of `Psr\Http\Message\StreamInterface::close()`
`public resource\|null`	# `detach( )` Detaches each attached stream Detaches each attached stream After the stream has been detached, the stream is in an unusable state. Returns resource\|null Underlying PHP stream, if any Implementation of `Psr\Http\Message\StreamInterface::detach()`
`public integer`	# `tell( )` Returns the current position of the file read/write pointer Returns the current position of the file read/write pointer Returns integer Position of the file pointer Throws RuntimeException on error. Implementation of `Psr\Http\Message\StreamInterface::tell()`
`public integer\|null`	# `getSize( )` Tries to calculate the size by adding the size of each stream. Tries to calculate the size by adding the size of each stream. If any of the streams do not return a valid number, then the size of the append stream cannot be determined and null is returned. Returns integer\|null Returns the size in bytes if known, or null if unknown. Implementation of `Psr\Http\Message\StreamInterface::getSize()`
`public boolean`	# `eof( )` Returns true if the stream is at the end of the stream. Returns true if the stream is at the end of the stream. Returns boolean Implementation of `Psr\Http\Message\StreamInterface::eof()`
`public`	# `rewind( )` Seek to the beginning of the stream. 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). Throws RuntimeException on failure. See `GuzzleHttp\Psr7\AppendStream::seek()` Link http://www.php.net/manual/en/function.fseek.php Implementation of `Psr\Http\Message\StreamInterface::rewind()`
`public`	# `seek( integer $offset, integer $whence = SEEK_SET )` Attempts to seek to the given position. Only supports SEEK_SET. Attempts to seek to the given position. Only supports SEEK_SET. Parameters `$offset` Stream offset `$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. Implementation of `Psr\Http\Message\StreamInterface::seek()`
`public string`	# `read( integer $length )` Reads from all of the appended streams until the length is met or EOF. Reads from all of the appended streams until the length is met or EOF. Parameters `$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. Returns string Returns the data read from the stream, or an empty string if no bytes are available. Throws RuntimeException if an error occurs. Implementation of `Psr\Http\Message\StreamInterface::read()`
`public boolean`	# `isReadable( )` Returns whether or not the stream is readable. Returns whether or not the stream is readable. Returns boolean Implementation of `Psr\Http\Message\StreamInterface::isReadable()`
`public boolean`	# `isWritable( )` Returns whether or not the stream is writable. Returns whether or not the stream is writable. Returns boolean Implementation of `Psr\Http\Message\StreamInterface::isWritable()`
`public boolean`	# `isSeekable( )` Returns whether or not the stream is seekable. Returns whether or not the stream is seekable. Returns boolean Implementation of `Psr\Http\Message\StreamInterface::isSeekable()`
`public integer`	# `write( string $string )` Write data to the stream. Write data to the stream. Parameters `$string` The string that is to be written. Returns integer Returns the number of bytes written to the stream. Throws RuntimeException on failure. Implementation of `Psr\Http\Message\StreamInterface::write()`
`public array\|mixed\|null`	# `getMetadata( string $key = null )` Get stream metadata as an associative array or retrieve a specific key. Get stream metadata as an associative array or retrieve a specific key. The keys returned are identical to the keys returned from PHP's stream_get_meta_data() function. Parameters `$key` Specific metadata to retrieve. Returns 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. Link http://php.net/manual/en/function.stream-get-meta-data.php Implementation of `Psr\Http\Message\StreamInterface::getMetadata()`