$algo
$algo : string
<?php
namespace League\Flysystem\Util;
class StreamHasher
{
/**
* @var string
*/
private $algo;
/**
* StreamHasher constructor.
*
* @param string $algo
*/
public function __construct($algo)
{
$this->algo = $algo;
}
/**
* @param resource $resource
*
* @return string
*/
public function hash($resource)
{
rewind($resource);
$context = hash_init($this->algo);
hash_update_stream($context, $resource);
fclose($resource);
return hash_final($context);
}
}