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   1  <?php
   2  /*
   3   * This file is part of the DebugBar package.
   4   *
   5   * (c) 2013 Maxime Bouroumeau-Fuseau
   6   *
   7   * For the full copyright and license information, please view the LICENSE
   8   * file that was distributed with this source code.
   9   */
  10  
  11  namespace DebugBar\DataFormatter;
  12  
  13  /**
  14   * Formats data to be outputed as string
  15   */
  16  interface DataFormatterInterface
  17  {
  18      /**
  19       * Transforms a PHP variable to a string representation
  20       *
  21       * @param mixed $data
  22       * @return string
  23       */
  24      function formatVar($data);
  25  
  26      /**
  27       * Transforms a duration in seconds in a readable string
  28       *
  29       * @param float $seconds
  30       * @return string
  31       */
  32      function formatDuration($seconds);
  33  
  34      /**
  35       * Transforms a size in bytes to a human readable string
  36       *
  37       * @param string $size
  38       * @param integer $precision
  39       * @return string
  40       */
  41      function formatBytes($size, $precision = 2);
  42  }