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<?php |
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/* |
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* This file is part of the webmozart/key-value-store package. |
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* |
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* (c) Bernhard Schussek <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Webmozart\KeyValueStore\Util; |
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use Exception; |
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use Webmozart\KeyValueStore\Api\SerializationFailedException; |
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use Webmozart\KeyValueStore\Api\UnserializationFailedException; |
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/** |
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* Wrapper for `serialize()`/`unserialize()` that throws proper exceptions. |
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* |
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* @since 1.0 |
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* |
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* @author Bernhard Schussek <[email protected]> |
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*/ |
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final class Serializer |
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{ |
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/** |
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* Serializes a value. |
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* |
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* @param mixed $value The value to serialize. |
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* |
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* @return string The serialized value. |
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* |
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* @throws SerializationFailedException If the value cannot be serialized. |
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*/ |
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public static function serialize($value) |
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{ |
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if (is_resource($value)) { |
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throw SerializationFailedException::forValue($value); |
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} |
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try { |
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$serialized = serialize($value); |
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} catch (Exception $e) { |
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throw SerializationFailedException::forValue($value, $e->getMessage(), $e->getCode(), $e); |
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} |
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return $serialized; |
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} |
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/** |
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* Unserializes a value. |
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* |
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* @param mixed $serialized The serialized value. |
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* |
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* @return string The unserialized value. |
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* |
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* @throws UnserializationFailedException If the value cannot be unserialized. |
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*/ |
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public static function unserialize($serialized) |
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{ |
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if (!is_string($serialized)) { |
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throw UnserializationFailedException::forValue($serialized); |
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} |
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$errorMessage = null; |
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$errorCode = 0; |
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set_error_handler(function ($errno, $errstr) use (&$errorMessage, &$errorCode) { |
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$errorMessage = $errstr; |
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$errorCode = $errno; |
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}); |
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$value = unserialize($serialized); |
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restore_error_handler(); |
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if (null !== $errorMessage) { |
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if (false !== $pos = strpos($errorMessage, '): ')) { |
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// cut "unserialize(%path%):" to make message more readable |
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$errorMessage = substr($errorMessage, $pos + 3); |
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} |
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throw UnserializationFailedException::forValue($serialized, $errorMessage, $errorCode); |
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} |
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return $value; |
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} |
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private function __construct() |
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{ |
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} |
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} |
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webmozart /
key-value-store
