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   1  <?php
   2  
   3  /*
   4   * This file is part of the Symfony package.
   5   *
   6   * (c) Fabien Potencier <[email protected]>
   7   *
   8   * For the full copyright and license information, please view the LICENSE
   9   * file that was distributed with this source code.
  10   */
  11  
  12  namespace Symfony\Component\VarDumper\Caster;
  13  
  14  use Symfony\Component\VarDumper\Cloner\Stub;
  15  
  16  /**
  17   * @author Jan Schädlich <[email protected]>
  18   *
  19   * @final
  20   */
  21  class MemcachedCaster
  22  {
  23      private static $optionConstants;
  24      private static $defaultOptions;
  25  
  26      public static function castMemcached(\Memcached $c, array $a, Stub $stub, bool $isNested)
  27      {
  28          $a += [
  29              Caster::PREFIX_VIRTUAL.'servers' => $c->getServerList(),
  30              Caster::PREFIX_VIRTUAL.'options' => new EnumStub(
  31                  self::getNonDefaultOptions($c)
  32              ),
  33          ];
  34  
  35          return $a;
  36      }
  37  
  38      private static function getNonDefaultOptions(\Memcached $c): array
  39      {
  40          self::$defaultOptions = self::$defaultOptions ?? self::discoverDefaultOptions();
  41          self::$optionConstants = self::$optionConstants ?? self::getOptionConstants();
  42  
  43          $nonDefaultOptions = [];
  44          foreach (self::$optionConstants as $constantKey => $value) {
  45              if (self::$defaultOptions[$constantKey] !== $option = $c->getOption($value)) {
  46                  $nonDefaultOptions[$constantKey] = $option;
  47              }
  48          }
  49  
  50          return $nonDefaultOptions;
  51      }
  52  
  53      private static function discoverDefaultOptions(): array
  54      {
  55          $defaultMemcached = new \Memcached();
  56          $defaultMemcached->addServer('127.0.0.1', 11211);
  57  
  58          $defaultOptions = [];
  59          self::$optionConstants = self::$optionConstants ?? self::getOptionConstants();
  60  
  61          foreach (self::$optionConstants as $constantKey => $value) {
  62              $defaultOptions[$constantKey] = $defaultMemcached->getOption($value);
  63          }
  64  
  65          return $defaultOptions;
  66      }
  67  
  68      private static function getOptionConstants(): array
  69      {
  70          $reflectedMemcached = new \ReflectionClass(\Memcached::class);
  71  
  72          $optionConstants = [];
  73          foreach ($reflectedMemcached->getConstants() as $constantKey => $value) {
  74              if (str_starts_with($constantKey, 'OPT_')) {
  75                  $optionConstants[$constantKey] = $value;
  76              }
  77          }
  78  
  79          return $optionConstants;
  80      }
  81  }