vendor/zendframework/zend-cache/src/Psr/SerializationTrait.php

   1 <?php
   2 /**
   3  * @see       https://github.com/zendframework/zend-cache for the canonical source repository
   4  * @copyright Copyright (c) 2018 Zend Technologies USA Inc. (https://www.zend.com)
   5  * @license   https://github.com/zendframework/zend-cache/blob/master/LICENSE.md New BSD License
   6  */
   7
   8 namespace Zend\Cache\Psr;
   9
  10 use Zend\Cache\Storage\StorageInterface;
  11
  12 /**
  13  * Provides common functionality surrounding value de/serialization as required
  14  * by both PSR-6 and PSR-16
  15  */
  16 trait SerializationTrait
  17 {
  18     /**
  19      * Determine if the given storage adapter requires serialization.
  20      *
  21      * @param StorageInterface $storage
  22      * @return bool
  23      */
  24     private function isSerializationRequired(StorageInterface $storage)
  25     {
  26         $capabilities = $storage->getCapabilities();
  27         $requiredTypes = ['string', 'integer', 'double', 'boolean', 'NULL', 'array', 'object'];
  28         $types = $capabilities->getSupportedDatatypes();
  29
  30         foreach ($requiredTypes as $type) {
  31             // 'object' => 'object' is OK
  32             // 'integer' => 'string' is not (redis)
  33             // 'integer' => 'integer' is not (memcache)
  34             if (! (isset($types[$type]) && in_array($types[$type], [true, 'array', 'object'], true))) {
  35                 return true;
  36             }
  37         }
  38
  39         return false;
  40     }
  41 }