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   1  <?php
   2  
   3  declare(strict_types=1);
   4  /**
   5   * SimplePie
   6   *
   7   * A PHP-Based RSS and Atom Feed Framework.
   8   * Takes the hard work out of managing a complete RSS/Atom solution.
   9   *
  10   * Copyright (c) 2004-2022, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors
  11   * All rights reserved.
  12   *
  13   * Redistribution and use in source and binary forms, with or without modification, are
  14   * permitted provided that the following conditions are met:
  15   *
  16   * 	 * Redistributions of source code must retain the above copyright notice, this list of
  17   * 	   conditions and the following disclaimer.
  18   *
  19   * 	 * Redistributions in binary form must reproduce the above copyright notice, this list
  20   * 	   of conditions and the following disclaimer in the documentation and/or other materials
  21   * 	   provided with the distribution.
  22   *
  23   * 	 * Neither the name of the SimplePie Team nor the names of its contributors may be used
  24   * 	   to endorse or promote products derived from this software without specific prior
  25   * 	   written permission.
  26   *
  27   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
  28   * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
  29   * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
  30   * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  31   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  32   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  33   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  34   * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  35   * POSSIBILITY OF SUCH DAMAGE.
  36   *
  37   * @package SimplePie
  38   * @copyright 2004-2016 Ryan Parman, Sam Sneddon, Ryan McCue
  39   * @author Ryan Parman
  40   * @author Sam Sneddon
  41   * @author Ryan McCue
  42   * @link http://simplepie.org/ SimplePie
  43   * @license http://www.opensource.org/licenses/bsd-license.php BSD License
  44   */
  45  
  46  namespace SimplePie;
  47  
  48  /**
  49   * Manages all category-related data
  50   *
  51   * Used by {@see \SimplePie\Item::get_category()} and {@see \SimplePie\Item::get_categories()}
  52   *
  53   * This class can be overloaded with {@see \SimplePie\SimplePie::set_category_class()}
  54   *
  55   * @package SimplePie
  56   * @subpackage API
  57   */
  58  class Category
  59  {
  60      /**
  61       * Category identifier
  62       *
  63       * @var string|null
  64       * @see get_term
  65       */
  66      public $term;
  67  
  68      /**
  69       * Categorization scheme identifier
  70       *
  71       * @var string|null
  72       * @see get_scheme()
  73       */
  74      public $scheme;
  75  
  76      /**
  77       * Human readable label
  78       *
  79       * @var string|null
  80       * @see get_label()
  81       */
  82      public $label;
  83  
  84      /**
  85       * Category type
  86       *
  87       * category for <category>
  88       * subject for <dc:subject>
  89       *
  90       * @var string|null
  91       * @see get_type()
  92       */
  93      public $type;
  94  
  95      /**
  96       * Constructor, used to input the data
  97       *
  98       * @param string|null $term
  99       * @param string|null $scheme
 100       * @param string|null $label
 101       * @param string|null $type
 102       */
 103      public function __construct($term = null, $scheme = null, $label = null, $type = null)
 104      {
 105          $this->term = $term;
 106          $this->scheme = $scheme;
 107          $this->label = $label;
 108          $this->type = $type;
 109      }
 110  
 111      /**
 112       * String-ified version
 113       *
 114       * @return string
 115       */
 116      public function __toString()
 117      {
 118          // There is no $this->data here
 119          return md5(serialize($this));
 120      }
 121  
 122      /**
 123       * Get the category identifier
 124       *
 125       * @return string|null
 126       */
 127      public function get_term()
 128      {
 129          return $this->term;
 130      }
 131  
 132      /**
 133       * Get the categorization scheme identifier
 134       *
 135       * @return string|null
 136       */
 137      public function get_scheme()
 138      {
 139          return $this->scheme;
 140      }
 141  
 142      /**
 143       * Get the human readable label
 144       *
 145       * @param bool $strict
 146       * @return string|null
 147       */
 148      public function get_label($strict = false)
 149      {
 150          if ($this->label === null && $strict !== true) {
 151              return $this->get_term();
 152          }
 153          return $this->label;
 154      }
 155  
 156      /**
 157       * Get the category type
 158       *
 159       * @return string|null
 160       */
 161      public function get_type()
 162      {
 163          return $this->type;
 164      }
 165  }
 166  
 167  class_alias('SimplePie\Category', 'SimplePie_Category');