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   1  <?php
   2  /**
   3   * SimplePie
   4   *
   5   * A PHP-Based RSS and Atom Feed Framework.
   6   * Takes the hard work out of managing a complete RSS/Atom solution.
   7   *
   8   * Copyright (c) 2004-2016, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors
   9   * All rights reserved.
  10   *
  11   * Redistribution and use in source and binary forms, with or without modification, are
  12   * permitted provided that the following conditions are met:
  13   *
  14   *     * Redistributions of source code must retain the above copyright notice, this list of
  15   *       conditions and the following disclaimer.
  16   *
  17   *     * Redistributions in binary form must reproduce the above copyright notice, this list
  18   *       of conditions and the following disclaimer in the documentation and/or other materials
  19   *       provided with the distribution.
  20   *
  21   *     * Neither the name of the SimplePie Team nor the names of its contributors may be used
  22   *       to endorse or promote products derived from this software without specific prior
  23   *       written permission.
  24   *
  25   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
  26   * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
  27   * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
  28   * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  29   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  30   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  31   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  32   * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  33   * POSSIBILITY OF SUCH DAMAGE.
  34   *
  35   * @package SimplePie
  36   * @copyright 2004-2016 Ryan Parman, Sam Sneddon, Ryan McCue
  37   * @author Ryan Parman
  38   * @author Sam Sneddon
  39   * @author Ryan McCue
  40   * @link http://simplepie.org/ SimplePie
  41   * @license http://www.opensource.org/licenses/bsd-license.php BSD License
  42   */
  43  
  44  /**
  45   * Handles `<media:rating>` or `<itunes:explicit>` tags as defined in Media RSS and iTunes RSS respectively
  46   *
  47   * Used by {@see SimplePie_Enclosure::get_rating()} and {@see SimplePie_Enclosure::get_ratings()}
  48   *
  49   * This class can be overloaded with {@see SimplePie::set_rating_class()}
  50   *
  51   * @package SimplePie
  52   * @subpackage API
  53   */
  54  class SimplePie_Rating
  55  {
  56      /**
  57       * Rating scheme
  58       *
  59       * @var string
  60       * @see get_scheme()
  61       */
  62      var $scheme;
  63  
  64      /**
  65       * Rating value
  66       *
  67       * @var string
  68       * @see get_value()
  69       */
  70      var $value;
  71  
  72      /**
  73       * Constructor, used to input the data
  74       *
  75       * For documentation on all the parameters, see the corresponding
  76       * properties and their accessors
  77       */
  78  	public function __construct($scheme = null, $value = null)
  79      {
  80          $this->scheme = $scheme;
  81          $this->value = $value;
  82      }
  83  
  84      /**
  85       * String-ified version
  86       *
  87       * @return string
  88       */
  89  	public function __toString()
  90      {
  91          // There is no $this->data here
  92          return md5(serialize($this));
  93      }
  94  
  95      /**
  96       * Get the organizational scheme for the rating
  97       *
  98       * @return string|null
  99       */
 100  	public function get_scheme()
 101      {
 102          if ($this->scheme !== null)
 103          {
 104              return $this->scheme;
 105          }
 106  
 107          return null;
 108      }
 109  
 110      /**
 111       * Get the value of the rating
 112       *
 113       * @return string|null
 114       */
 115  	public function get_value()
 116      {
 117          if ($this->value !== null)
 118          {
 119              return $this->value;
 120          }
 121  
 122          return null;
 123      }
 124  }