src/Slim.php
public function stringToStream(string $input): StreamInterface
    {
        /** @var resource $stream */
        $stream = \fopen('php://temp', 'w+');
        if (!\is_resource($stream)) {
            throw new \Error('Could not create stream');
        }
        \fwrite($stream, $input);
        \rewind($stream);
        return new Stream($stream);
    }
public function stringToStream(string $input): StreamInterface
    {
        /** @var resource $stream */
        $stream = \fopen('php://temp', 'w+');
        if (!\is_resource($stream)) {
            throw new \Error('Could not create stream');
        }
        \fwrite($stream, $input);
        \rewind($stream);
        return new Stream($stream);
    }
Adapter-specific way of converting a string into a StreamInterface

@param string $input
@return StreamInterface
@throws \Error