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   1  <?php
   2  
   3  /*
   4   * This file is part of the Symfony package.
   5   *
   6   * (c) Fabien Potencier <fabien@symfony.com>
   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\HttpKernel\DataCollector;
  13  
  14  /**
  15   * DataCollector.
  16   *
  17   * Children of this class must store the collected data in the data property.
  18   *
  19   * @author Fabien Potencier <fabien@symfony.com>
  20   */
  21  abstract class DataCollector implements DataCollectorInterface, \Serializable
  22  {
  23      protected $data;
  24  
  25      public function serialize()
  26      {
  27          return serialize($this->data);
  28      }
  29  
  30      public function unserialize($data)
  31      {
  32          $this->data = unserialize($data);
  33      }
  34  
  35      /**
  36       * Converts a PHP variable to a string.
  37       *
  38       * @param mixed $var A PHP variable
  39       *
  40       * @return string The string representation of the variable
  41       */
  42      protected function varToString($var)
  43      {
  44          if (is_object($var)) {
  45              return sprintf('Object(%s)', get_class($var));
  46          }
  47  
  48          if ($var instanceof \__PHP_Incomplete_Class) {
  49              return sprintf('__PHP_Incomplete_Class(%s)', $this->getClassNameFromIncomplete($var));
  50          }
  51  
  52          if (is_array($var)) {
  53              $a = array();
  54              foreach ($var as $k => $v) {
  55                  $a[] = sprintf('%s => %s', $k, $this->varToString($v));
  56              }
  57  
  58              return sprintf('Array(%s)', implode(', ', $a));
  59          }
  60  
  61          if (is_resource($var)) {
  62              return sprintf('Resource(%s#%d)', get_resource_type($var), $var);
  63          }
  64  
  65          if (null === $var) {
  66              return 'null';
  67          }
  68  
  69          if (false === $var) {
  70              return 'false';
  71          }
  72  
  73          if (true === $var) {
  74              return 'true';
  75          }
  76  
  77          return (string) $var;
  78      }
  79  
  80      private function getClassNameFromIncomplete(\__PHP_Incomplete_Class $var)
  81      {
  82          $array = new \ArrayObject($var);
  83  
  84          return $array['__PHP_Incomplete_Class_Name'];
  85      }
  86  }