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<?php |
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/** |
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* This file is part of the m1\vars library |
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* |
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* (c) m1 <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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* |
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* @package m1/vars |
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* @version 1.1.0 |
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* @author Miles Croxford <[email protected]> |
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* @copyright Copyright (c) Miles Croxford <[email protected]> |
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* @license http://github.com/m1/vars/blob/master/LICENSE |
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* @link http://github.com/m1/vars/blob/master/README.MD Documentation |
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*/ |
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namespace M1\Vars\Resource; |
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/** |
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* Abstract Resource enables normal and dot notation array access on resources |
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* |
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* @since 0.1.0 |
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*/ |
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abstract class AbstractResource implements \ArrayAccess |
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{ |
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/** |
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* The resource content |
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* |
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* @var array |
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*/ |
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protected $content = array(); |
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/** |
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* Sets the resource contents |
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* |
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* @param array $content |
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* |
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* @return $this |
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*/ |
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public function setContent($content) |
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{ |
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$this->content = $content; |
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return $this; |
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} |
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/** |
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* Returns the content of the resource |
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* |
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* @return array The content |
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*/ |
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public function getContent() |
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{ |
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return $this->content; |
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} |
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/** |
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* Normal `$example[$key]` access for the array |
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* |
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* @param mixed $key The key to get the value for |
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* |
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* @return array|bool|null The resource key value |
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*/ |
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public function offsetGet($key) |
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{ |
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return $this->internalGet($this->content, $key); |
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} |
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/** |
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* Object oriented get access for the array |
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* |
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* @param mixed $key The key to get the value for |
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* |
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* @return array|bool|null The resource key value |
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*/ |
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public function get($key) |
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{ |
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return $this->internalGet($this->content, $key); |
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} |
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/** |
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* The internal get function for getting values by their key |
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* |
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* @param array $array The array to use -- will always be $this->content |
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* @param mixed $key The key to find the value for |
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* @param bool $exists Whether to return null or false dependant on the calling function |
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* |
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* @return array|bool|null The resource key value |
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*/ |
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private function internalGet(array $array, $key, $exists = false) |
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{ |
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if (isset($array[$key])) { |
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return (!$exists) ? $array[$key] : true; |
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} |
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$parts = explode('.', $key); |
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foreach ($parts as $part) { |
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if (!is_array($array) || !isset($array[$part])) { |
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return (!$exists) ? null : false; |
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} |
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$array = $array[$part]; |
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} |
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return (!$exists) ? $array : true; |
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} |
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/** |
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* Normal `$example[$key] = 'hello'` access for the array |
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* |
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* @param mixed $key The key to set the value for |
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* @param mixed $value The value to set |
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*/ |
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public function offsetSet($key, $value) |
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{ |
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$this->internalSet($this->content, $key, $value); |
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} |
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/** |
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* Object oriented set access for the array |
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* |
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* @param string $key The key to set the value for |
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* @param string $value The value to set |
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*/ |
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public function set($key, $value) |
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{ |
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$this->internalSet($this->content, $key, $value); |
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} |
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/** |
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* Object oriented set access for the array |
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* |
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* @param array $array The array to use -- will always be based on $this->content but can be used recursively |
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* @param mixed $key The key to set the value for |
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* @param mixed $value The value to set |
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* |
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* @return array Returns the modified array |
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*/ |
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private function internalSet(array &$array, $key, $value) |
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{ |
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if (is_null($key)) { |
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return $array = $value; |
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} |
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$keys = explode('.', $key); |
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while (count($keys) > 1) { |
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$key = array_shift($keys); |
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if (! isset($array[$key]) || ! is_array($array[$key])) { |
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$array[$key] = []; |
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} |
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$array = &$array[$key]; |
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} |
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$array[array_shift($keys)] = $value; |
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return $array; |
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} |
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/** |
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* Checks whether the key exists |
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* |
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* @param mixed $key The key to check |
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* |
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* @return bool Does the key exist |
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*/ |
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public function offsetExists($key) |
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{ |
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return $this->internalGet($this->content, $key, true); |
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} |
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/** |
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* Unsets the key |
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* |
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* @param mixed $key The key to unset |
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*/ |
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public function offsetUnset($key) |
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{ |
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$this->internalUnset($this->content, $key); |
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} |
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/** |
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* Internal unset for the key |
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* |
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* @param array $array The array to use -- will always be based on $this->content but can be used recursively |
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* @param mixed $key The key to unset |
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*/ |
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protected function internalUnset(array &$array, $key) |
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{ |
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$parts = explode(".", $key); |
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while (count($parts) > 1) { |
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$part = array_shift($parts); |
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if (isset($array[$part]) && is_array($array[$part])) { |
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$array =& $array[$part]; |
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} |
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} |
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unset($array[array_shift($parts)]); |
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} |
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/** |
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* Port of array_key_exists to \ArrayAccess |
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* |
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* @param mixed $key The key to check if exists |
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* |
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* @return bool Does the key exist |
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*/ |
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public function arrayKeyExists($key) |
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{ |
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if (array_key_exists($key, $this->content)) { |
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return true; |
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} |
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$parts = explode('.', $key); |
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$arr = $this->content; |
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foreach ($parts as $part) { |
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if (!is_array($arr) || !array_key_exists($part, $arr)) { |
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return false; |
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} |
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$arr = $arr[$part]; |
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} |
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return true; |
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} |
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} |
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