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<?php
/**
* Copyright 2017 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
namespace Google\Cloud\Core;
use GuzzleHttp\Psr7\Utils;
use Psr\Http\Message\StreamInterface;
/**
* Represents a Blob value.
*
* Blobs can be used to store binary across data various Google Cloud services.
*
* Example:
* ```
* use Google\Cloud\Core\Blob;
*
* $blob = new Blob(file_get_contents(__DIR__ .'/family-photo.jpg'));
* ```
*
* ```
* // Get the value of a blob by casting to a string.
*
* echo (string) $blob;
* ```
*/
class Blob
{
/**
* @var mixed
*/
private $value;
/**
* Create a blob
*
* @param string|resource|StreamInterface $value The blob value
*/
public function __construct($value)
{
$this->value = Utils::streamFor($value);
}
/**
* Get the blob contents as a stream
*
* Example:
* ```
* $value = $blob->get();
* ```
*
* @return StreamInterface
*/
public function get()
{
return $this->value;
}
/**
* Cast the blob to a string
*
* @access private
* @return string
*/
public function __toString()
{
return (string) $this->value;
}
}
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