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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\Util;
  13  
  14  /**
  15   * @author Bernhard Schussek <bschussek@gmail.com>
  16   */
  17  class ValueExporter
  18  {
  19      /**
  20       * Converts a PHP value to a string.
  21       *
  22       * @param mixed $value The PHP value
  23       * @param int   $depth Only for internal usage
  24       * @param bool  $deep  Only for internal usage
  25       *
  26       * @return string The string representation of the given value
  27       */
  28      public function exportValue($value, $depth = 1, $deep = false)
  29      {
  30          if ($value instanceof \__PHP_Incomplete_Class) {
  31              return sprintf('__PHP_Incomplete_Class(%s)', $this->getClassNameFromIncomplete($value));
  32          }
  33  
  34          if (\is_object($value)) {
  35              if ($value instanceof \DateTime || $value instanceof \DateTimeInterface) {
  36                  return sprintf('Object(%s) - %s', \get_class($value), $value->format(\DateTime::ATOM));
  37              }
  38  
  39              return sprintf('Object(%s)', \get_class($value));
  40          }
  41  
  42          if (\is_array($value)) {
  43              if (empty($value)) {
  44                  return '[]';
  45              }
  46  
  47              $indent = str_repeat('  ', $depth);
  48  
  49              $a = array();
  50              foreach ($value as $k => $v) {
  51                  if (\is_array($v)) {
  52                      $deep = true;
  53                  }
  54                  $a[] = sprintf('%s => %s', $k, $this->exportValue($v, $depth + 1, $deep));
  55              }
  56  
  57              if ($deep) {
  58                  return sprintf("[\n%s%s\n%s]", $indent, implode(sprintf(", \n%s", $indent), $a), str_repeat('  ', $depth - 1));
  59              }
  60  
  61              return sprintf('[%s]', implode(', ', $a));
  62          }
  63  
  64          if (\is_resource($value)) {
  65              return sprintf('Resource(%s#%d)', get_resource_type($value), $value);
  66          }
  67  
  68          if (null === $value) {
  69              return 'null';
  70          }
  71  
  72          if (false === $value) {
  73              return 'false';
  74          }
  75  
  76          if (true === $value) {
  77              return 'true';
  78          }
  79  
  80          return (string) $value;
  81      }
  82  
  83      private function getClassNameFromIncomplete(\__PHP_Incomplete_Class $value)
  84      {
  85          $array = new \ArrayObject($value);
  86  
  87          return $array['__PHP_Incomplete_Class_Name'];
  88      }
  89  }