/**
* Copy the contents of a stream into another stream until the given number of
* bytes have been read.
*
* @param StreamInterface $source Stream to read from
* @param StreamInterface $dest Stream to write to
* @param int $maxLen Maximum number of bytes to read. Pass -1 to
* read the entire stream.
*/
function copy_to_stream(StreamInterface $source, StreamInterface $dest, $maxLen = -1)
{
if ($maxLen === -1) {
while (!$source->eof()) {
if (!$dest->write($source->read(1048576))) {
break;
}
}
return;
}
$bytes = 0;
while (!$source->eof()) {
$buf = $source->read($maxLen - $bytes);
if (!($len = strlen($buf))) {
break;
}
$bytes += $len;
$dest->write($buf);
if ($bytes == $maxLen) {
break;
}
}
}
public function stream_write($data)
{
return (int) $this->stream->write($data);
}
