StreamFactoryInterface.php
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StreamFactoryInterface.php
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	<?php

	namespace Psr\Http\Message;

	interface StreamFactoryInterface
	{
	/**
	* Create a new stream from a string.
	*
	* The stream SHOULD be created with a temporary resource.
	*
	* @param string $content String content with which to populate the stream.
	*
	* @return StreamInterface
	*/
	public function createStream(string $content = ''): StreamInterface;

	/**
	* Create a stream from an existing file.
	*
	* The file MUST be opened using the given mode, which may be any mode
	* supported by the `fopen` function.
	*
	* The `$filename` MAY be any string supported by `fopen()`.
	*
	* @param string $filename Filename or stream URI to use as basis of stream.
	* @param string $mode Mode with which to open the underlying filename/stream.
	*
	* @return StreamInterface
	* @throws \RuntimeException If the file cannot be opened.
	* @throws \InvalidArgumentException If the mode is invalid.
	*/
	public function createStreamFromFile(string $filename, string $mode = 'r'): StreamInterface;

	/**
	* Create a new stream from an existing resource.
	*
	* The stream MUST be readable and may be writable.
	*
	* @param resource $resource PHP resource to use as basis of stream.
	*
	* @return StreamInterface
	*/
	public function createStreamFromResource($resource): StreamInterface;
	}