Просмотр файла news/libraries/magic.php

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  1. <?php
  2.  
  3. /*
  4. 	Copyright (c) 2009-2014 F3::Factory/Bong Cosca, All rights reserved.
  5.  
  6. 	This file is part of the Fat-Free Framework (http://fatfree.sf.net).
  7.  
  8. 	THE SOFTWARE AND DOCUMENTATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF
  9. 	ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
  10. 	IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
  11. 	PURPOSE.
  12.  
  13. 	Please see the license.txt file for more information.
  14. */
  15.  
  16. //! PHP magic wrapper
  17. abstract class Magic implements ArrayAccess {
  18.  
  19. 	/**
  20. 	*	Return TRUE if key is not empty
  21. 	*	@return bool
  22. 	*	@param $key string
  23. 	**/
  24. 	abstract function exists($key);
  25.  
  26. 	/**
  27. 	*	Bind value to key
  28. 	*	@return mixed
  29. 	*	@param $key string
  30. 	*	@param $val mixed
  31. 	**/
  32. 	abstract function set($key,$val);
  33.  
  34. 	/**
  35. 	*	Retrieve contents of key
  36. 	*	@return mixed
  37. 	*	@param $key string
  38. 	**/
  39. 	abstract function get($key);
  40.  
  41. 	/**
  42. 	*	Unset key
  43. 	*	@return NULL
  44. 	*	@param $key string
  45. 	**/
  46. 	abstract function clear($key);
  47.  
  48. 	/**
  49. 	*	Return TRUE if property has public/protected visibility
  50. 	*	@return bool
  51. 	*	@param $key string
  52. 	**/
  53. 	private function visible($key) {
  54. 		if (property_exists($this,$key)) {
  55. 			$ref=new ReflectionProperty(get_class($this),$key);
  56. 			$out=!$ref->isprivate();
  57. 			unset($ref);
  58. 			return $out;
  59. 		}
  60. 		return FALSE;
  61. 	}
  62.  
  63. 	/**
  64. 	*	Convenience method for checking property value
  65. 	*	@return mixed
  66. 	*	@param $key string
  67. 	**/
  68. 	function offsetexists($key) {
  69. 		return $this->visible($key)?isset($this->$key):$this->exists($key);
  70. 	}
  71.  
  72. 	/**
  73. 	*	Alias for offsetexists()
  74. 	*	@return mixed
  75. 	*	@param $key string
  76. 	**/
  77. 	function __isset($key) {
  78. 		return $this->offsetexists($key);
  79. 	}
  80.  
  81. 	/**
  82. 	*	Convenience method for assigning property value
  83. 	*	@return mixed
  84. 	*	@param $key string
  85. 	*	@param $val scalar
  86. 	**/
  87. 	function offsetset($key,$val) {
  88. 		return $this->visible($key)?($this->key=$val):$this->set($key,$val);
  89. 	}
  90.  
  91. 	/**
  92. 	*	Alias for offsetset()
  93. 	*	@return mixed
  94. 	*	@param $key string
  95. 	*	@param $val scalar
  96. 	**/
  97. 	function __set($key,$val) {
  98. 		return $this->offsetset($key,$val);
  99. 	}
  100.  
  101. 	/**
  102. 	*	Convenience method for retrieving property value
  103. 	*	@return mixed
  104. 	*	@param $key string
  105. 	**/
  106. 	function offsetget($key) {
  107. 		return $this->visible($key)?$this->$key:$this->get($key);
  108. 	}
  109.  
  110. 	/**
  111. 	*	Alias for offsetget()
  112. 	*	@return mixed
  113. 	*	@param $key string
  114. 	**/
  115. 	function __get($key) {
  116. 		return $this->offsetget($key);
  117. 	}
  118.  
  119. 	/**
  120. 	*	Convenience method for checking property value
  121. 	*	@return NULL
  122. 	*	@param $key string
  123. 	**/
  124. 	function offsetunset($key) {
  125. 		if ($this->visible($key))
  126. 			unset($this->$key);
  127. 		else
  128. 			$this->clear($key);
  129. 	}
  130.  
  131. 	/**
  132. 	*	Alias for offsetunset()
  133. 	*	@return NULL
  134. 	*	@param $key string
  135. 	**/
  136. 	function __unset($key) {
  137. 		$this->offsetunset($key);
  138. 	}
  139.  
  140. }