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) 2004-2012, Ryan Parman, Geoffrey 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:  * @version 1.3-dev
 37:  * @copyright 2004-2012 Ryan Parman, Geoffrey Sneddon, Ryan McCue
 38:  * @author Ryan Parman
 39:  * @author Geoffrey Sneddon
 40:  * @author Ryan McCue
 41:  * @link http://simplepie.org/ SimplePie
 42:  * @license http://www.opensource.org/licenses/bsd-license.php BSD License
 43:  */
 44: 
 45: /**
 46:  * Handles `<media:rating>` or `<itunes:explicit>` tags as defined in Media RSS and iTunes RSS respectively
 47:  *
 48:  * Used by {@see SimplePie_Enclosure::get_rating()} and {@see SimplePie_Enclosure::get_ratings()}
 49:  *
 50:  * This class can be overloaded with {@see SimplePie::set_rating_class()}
 51:  *
 52:  * @package SimplePie
 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 $this->scheme;
105:         }
106:         else
107:         {
108:             return null;
109:         }
110:     }
111: 
112:     /**
113:      * Get the value of the rating
114:      *
115:      * @return string|null
116:      */
117:     public function get_value()
118:     {
119:         if ($this->value !== null)
120:         {
121:             return $this->value;
122:         }
123:         else
124:         {
125:             return null;
126:         }
127:     }
128: }
129: